Portable grinders. Purpose and types.
The portable grinder is a lightweight, hand-operated machine tool. It can be powered electrically or pneumatically, depending on the model selected. The portable grinder is used in the field or maintenance shop to grind excess metal from welds, remove rust, and for special finishing operations around the work area. Since this tool is hand operated, the quality of the work depends upon the ability and experience of the operator.
A small portable chuck type grinder may be known as a die grinder and is available with a number of accessories. These accessories include rotary files, small circular saws, wire brushes, assorted grinding wheels, and small sanding and polishing disks. These accessories are mounted to straight shank arbors which fit into the collect chuck of the grinder.
Special reduction collets are provided so that smaller diameter arbors or shanks can be mounted in the chuck. Operations performed with this portable grinder include shaping and smoothing intricate dies and castings, removing burrs from edges and surfaces, cleaning and repairing threaded parts, repairing keyways and splines, grinding bevels, countersinking holes and repairing scored and mutilated surfaces.
The portable grinder (wheel type) (Figure 2) can be electric or pneumatic and is designed for heavy-duty portable grinding operations. It is capable of mounting and rotating 6- inch-diameter grinding abrasive wheels and 6-inch-diameter wire brushes and polishing wheels. This grinder is used as a hand grinder for removing rust, corrosion, and sharp burrs from large workpieces (Figure 3).
Most portable grinders come with a grinder stand (Figure 4). Mounted on this stand, the grinder can be used to sharpen twist drills and cutter bits in the machine shop. Most grinders also come equipped with a wheel guard that should remain in place at all times to protect the operator from flying sparks and waste material. The portable grinder is designed so that the face of the grinding wheel is used; never use the side of the wheel or serious injury or damage could occur (Figure 5).
The angle grinder (disk type) (Figure 6) can be electric or pneumatic, and is designed for heavy duty grinding operations. The angle grinder consists of a depressed center abrasive grinding disk with wheel guard attached to the basic portable motor assembly (Figure 7). Care must be taken to check the wheel for cracks and to ensure that the wheel guard stays in place while operating.

Fig. 1- Portable electric grinder ( chuck type ) - Amoladora eléctrica portátil ( tipo mandril )

Fig. 2 - Portable grinders ( wheel type ) - Amoladoras portátiles ( tipo disco )

Fig. 3- Operation of portable pneumatic grinder - Operación de una amoladora neumática portátil
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Amoladoras portátiles. Propósitos y tipos .
La amoladora portátil es una máquina herramienta ligera y manual. Puede ser accionada eléctricamente o neumáticamente, dependiendo del modelo seleccionado. La amoladora portátil se utiliza en campo o en el taller de mantenimiento para amolar exceso de metal de soldaduras, quitar óxido, y para las operaciones de acabado especiales alrededor del área de trabajo. Puesto que esta herramienta es manual, la calidad del trabajo depende de la capacidad y de la experiencia del operador.
Un tipo portátil de amoladora pequeña de mandril puede ser conocida como rectificadora de matrices (también amoladora recta, amoladora de troqueles, amoladora de dados, etc ). y está disponible con un número de accesorios. Estos accesorios incluyen limas rotativas, pequeñas sierras circulares, cepillos de alambre, muelas abrasivas variadas, y pequeños discos de lijar y de pulir. Estos accesorios se montan en ejes de espigas rectas que caben en el mandril de la amoladora.
Se proporcionan pinzas portapiezas de reducción especiales para poder insertar ejes de espigas o vástagos de un diámetro más pequeños en el mandril. Las operaciones realizadas con esta amoladora portátil incluyen formar y alisar moldes y bastidores intrincados, remoción de rebabas de bordes y de superficies, la limpieza y reparación de piezas roscadas, reparación de chaveteras y acanaladuras, biseles amolados, avellanando de agujeros y reparación de superficies marcadas y mutiladas.
La amoladora portátil (tipo disco) (figura 2) puede ser eléctrica o neumática y se diseña para operaciones de pulido portátiles de gran potencia. Es capaz de insertar y de rotar discos abrasivos de 6 pulgadas de diámetro y discos de cepillado de alambre y discos de pulido de 6 pulgadas. Esta amoladora se utiliza en forma manual para quitar óxido, corrosión, y rebabas agudas de piezas de trabajo (figura 3).
La mayoría de las amoladoras portátiles vienen con un soporte de amoladora (figura 4). Montada en este soporte, la amoladora se puede utilizar para afilar brocas helicoidales y sacabocados en el taller de máquinas. La mayoría de las amoladoras también vienen equipadas con un protector de disco que debe permanecer en el lugar siempre para proteger al operador contra chispas voladoras y material de desecho. La amoladora portátil se diseña de manera de utilizar la cara del disco abrasivo; nunca utilice el filo del disco o podrían ocurrir serias lesiones o daños (cuadro 5).
La amoladora de ángulo (tipo disco) (figura 6 ) puede ser eléctrica o neumática, y se diseña para operaciones de pulido de gran potencia. La amoladora de ángulo consiste en un disco de pulido abrasivo de centro deprimido con el protector de disco fijado al montaje de motor portátil básico (figura 7). Se debe tener cuidado de comprobar el estado del disco para saber si hay grietas y para asegurarse de que el protector de disco permanece en el lugar mientras funciona.

Fig. 4 - Portable electric grinder ( wheel type ) with grinder stand - Amoladora eléctrica portátil ( tipo disco ) con soporte de amoladora.

Fig. 5- Correct and incorrect methods of using the portable grinder ( wheel type ) - Métodos correcto e incorrecto de uso de una amoladora portátil ( tipo disco )

Fig. 6- Angle grinders (disk type ) - Amoladoras angulares ( tipo disco ) |

Fig. 7- Configuration of an angle grinder (disk type ) - Configuración de una amoladora angular ( tipo disco )
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- Northern Industrial Magnesium Angle Grinder - 4 1/2in., 7.5 Amp
$39.99
This Northern Industrial 4 1/2in. 7.5 Amp angle grinder features a die-cast magnesium gear housing that delivers the ideal combination of light weight and durability. Provides power for fast cutting and grinding. Wheel Diameter (in.): 4 1/2, Amps: 7.5, Speed (RPM): 11, 000, Spindle Lock: Yes, Side Handle: Yes Powerful 7.5 Amp 120V motor for fast cutting 11, 000 RPM no-load speed Rubberized grips on front and rear handles for comfort and control Spindle lock for fast wheel changes Magnesium gear housing for lightweight durability Tool-free wheel guard adjustment Swivel ball-joint power cord for fewer tangles Externally accessible carbon brushes Includes 3-position auxiliary handle and 4 1/2in. grinding wheel [Read more]
Store: Northern Tool and Equipment
Brand: Northern Industrial Tools
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- Milwaukee V28 Cordless Grinder/Cutoff Tool - 4 1/2in., Tool Only, Model# 0725-20
$199.99
With a 28V motor and V28 lithium-ion battery (not included), the Milwaukee Cordless Grinder/Cutoff Tool delivers the speed and power needed for fast grinding and cutting applications. The overload protection and soft start features extend tool life for extreme durability while providing a compact, lightweight solution without surrendering features or durability. Wheel Diameter (in.): 4 1/2, Speed (RPM): 8, 000, Switch Type: Slide On Switch, Spindle Thread Size: 5/8in.-11, Spindle Lock: Yes, Side Handle: Yes, Wheel Included: Yes Grinder/Cutoff tool only 28V motor Soft start with slide-on switch Large spindle lock for quick wheel replacement Overload protection prevents overheating Uses V28 Li-Ion battery (not included), which provides up to 75 cuts of 1/2in. threaded rod 5-position guard allows quick tool-free adjustment Fuel gauge indicates remaining run time [Read more]
Store: Northern Tool and Equipment
Brand: Milwaukee
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- Milwaukee V28 Cordless Grinder/Cutoff Tool Kit - 28 Volts, 4 1/2in., Model# 0725-21
$349.99
With a 28V motor and V28 lithium-ion battery (included), the Milwaukee Cordless Grinder/Cutoff Tool delivers the speed and power needed for fast grinding and cutting applications. The overload protection and soft start features extend tool life for extreme durability while providing a compact, lightweight solution without surrendering features or durability. Wheel Diameter (in.): 4 1/2, Speed (RPM): 8, 000, Switch Type: Slide On Switch, Spindle Lock: Yes, Side Handle: Yes, Wheel Included: Yes, Case Included: Yes 28V motor; 8000 RPM Soft start with slide-on switch Large spindle lock for quick wheel replacement Overload protection prevents overheating Uses V28 Li-Ion battery, which provides up to 75 cuts of 1/2in. threaded rod 5-position guard allows quick tool-free adjustment Fuel gauge indicates remaining run time [Read more]
Store: Northern Tool and Equipment
Brand: Milwaukee
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Northern Industrial Air Angle Die Grinder
$24.99
This air angle die grinder offers an ergonomic, compact design and has a 90 head that makes it ideal for use in confined areas. Air Consumption (CFM): 4, Speed (RPM): 20, 000, Air Inlet Size (in. NPT): 1/4, Min. Hose Size (in.): 3/8, Side Handle: No Ergonomic, compact design 90 head for use in confined areas [Read more]
Store: Northern Tool and Equipment
Brand: Northern Industrial Tools
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- Milwaukee Angle Grinder with Lock-On Trigger Grip - 4 1/2in., 10 Amp, Model# 6122-30
$119.99
The Milwaukee 4 1/2in. 10 Amp Trigger Grip Grinder w/ Lock-on delivers performance, durability and ease-of-use features for industrial users. The trigger grip handle with lock-on increases productivity by providing optimal control, reach and leverage for a variety of applications. Wheel Diameter (in.): 4 1/2, Amps: 10, Speed (RPM): 10, 000, Switch Type: Trigger (with Lock-On), Spindle Thread Size: 5/8 in. - 11, Side Handle: Yes, Cord Length (ft.): 8, Wrench Included: Yes Powerful 1250 MWO motor provides 10, 000 RPM, high overload protection and power for difficult jobs Trigger grip handle provides better control, reach and leverage Debris baffles and multiport exhaust protect internal components 25% longer lasting epoxy protection on the tools motor components Tool-free burst resistant guard for quick adjustments External brush doors Extra-large paddle switch with lock-on [Read more]
Store: Northern Tool and Equipment
Brand: Milwaukee
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- Milwaukee Angle Grinder with Trigger Grip - 10 Amp, 4 1/2in., Non-Locking, Model# 6122-31
$119.99
The Milwaukee 10.0 Amp Trigger Grip Grinder (Non Lock-on) delivers performance, durability and ease-of-use features for industrial users. The trigger grip handle increases productivity by providing optimal control, reach and leverage for a variety of applications. Wheel Diameter (in.): 4 1/2, Amps: 10, Speed (RPM): 10, 000, Switch Type: Paddle, Spindle Thread Size: 5/8 in. - 11, Spindle Lock: Yes, Side Handle: Yes, Cord Length (ft.): 8, Wheel Included: Yes, Wrench Included: Yes Powerful 1250 MWO motor has high overload protection and power for difficult jobs Trigger grip handle provides better control, reach and leverage Debris baffles and multiport exhaust protect internal components 25% longer lasting epoxy protection on the tools motor components Tool-free burst resistant guard for quick adjustments [Read more]
Store: Northern Tool and Equipment
Brand: Milwaukee
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- Milwaukee Angle Grinder - 7.5 Amp, 4 1/2in. with Lock-On, Model# 6140-30
$89.99
The Milwaukee 7.5 Amp Small Angle Grinder delivers performance, durability and ease-of-use features for industrial users. The X-large paddle switch with lock-on increases comfort and ease-of use when operating the grinder in various positions. Milwaukees built in advanced airflow system, including Debris Baffles and Multi-Port Exhaust, extends tool life. Item is on backorder with the manufacturer. Wheel Diameter (in.): 4 1/2, Amps: 7.5, Speed (RPM): 10, 000, Switch Type: Paddle (with Lock-On), Spindle Thread Size: 5/8 in. - 11, Spindle Lock: Yes, Side Handle: Yes, Cord Length (ft.): 8, Wrench Included: Yes 825 MWO motor has high overload protection and power for difficult jobs Debris baffles and multiport exhaust protect internal components 25% longer lasting epoxy protection on the tools motor components Tool-free burst resistant guard for quick adjustments [Read more]
Store: Northern Tool and Equipment
Brand: Milwaukee
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- Milwaukee Angle Grinder - 7 Amp, 4 1/2in., Model# 6140-33
$69.99
The Milwaukee 7 Amp Small Angle Grinder (Slide Switch w/ Lock-on) delivers performance, durability and ease-of-use features for industrial users. Features a built-in advanced airflow system, including Debris Baffles and Multi-Port Exhaust, which extends tool life. 25% longer lasting epoxy motor protection extends tool life by protecting the copper wires from abrasion. Wheel Diameter (in.): 4 1/2, Amps: 7, Speed (RPM): 10, 000, Switch Type: Slide, Spindle Thread Size: 5/8 in. - 11, Spindle Lock: Yes, Side Handle: Yes, Cord Length (ft.): 8, Wheel Included: Yes, Wrench Included: Yes 7 Amp AC/DC, 775 MWO motor Tool-free burst-resistant guard [Read more]
Store: Northern Tool and Equipment
Brand: Milwaukee
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- Milwaukee Grinder - 10 Amp, 4 1/2in. w/Lock-On, Model# 6148-30
$99.99
The Milwaukee 10.0 Amp Small Angle Grinder delivers performance, durability and ease-of-use features for industrial users. The X-large paddle switch with lock-on increases comfort and ease-of use when operating the grinder in various positions. Milwaukees built in advanced airflow system, including Debris Baffles and Multi-Port Exhaust, extends tool life. Wheel Diameter (in.): 4 1/2, Amps: 10, Speed (RPM): 10, 000, Switch Type: Paddle with Lock-On, Side Handle: Yes, Wheel Included: Yes, Wrench Included: Yes, Case Included: Yes 1250 MWO Grinder Epoxy-protected motor for longer life Advanced airflow system with debris baffles Multi-port exhaust Paddle switch with lock on Tool-free burst-resistant guard [Read more]
Store: Northern Tool and Equipment
Brand: Milwaukee
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- Milwaukee Grinder - 10 Amp, 4 1/2in., Non-Locking, Model# 6148-31
$99.99
The Milwaukee 10.0 Amp Small Angle Grinder delivers performance, durability and ease-of-use features for industrial users. The X-large paddle switch (without Lock-On) increases comfort and ease-of use when operating the grinder in various positions. Milwaukees built-in advanced airflow system, including Debris Baffles and Multi-Port Exhaust, extends tool life. Wheel Diameter (in.): 4 1/2, Amps: 10, Speed (RPM): 10, 000, Switch Type: Paddle (w/o Lock-On), Spindle Thread Size: 5/8 in. - 11, Spindle Lock: Yes, Side Handle: Yes, Cord Length (ft.): 8, Wheel Included: Yes, Wrench Included: Yes 1250 MWO Grinder Epoxy-protected motor for longer life Advanced airflow system with debris baffles Multi-port exhaust Tool-free burst-resistant guard [Read more]
Store: Northern Tool and Equipment
Brand: Milwaukee
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- Milwaukee Grinder - 10 Amp, 4 1/2in., Slide Switch with Lock-On, Model# 6148-33
$99.99
The Milwaukee 10.0 Amp Small Angle Grinder (Slide Switch with Lock-on) delivers performance, durability and ease-of-use features for industrial users. Wheel Diameter (in.): 4 1/2, Amps: 10, Speed (RPM): 10, 000, Switch Type: Slide, Spindle Thread Size: 5/8 in. - 11, Spindle Lock: Yes, Side Handle: Yes, Cord Length (ft.): 8, Wheel Included: Yes, Wrench Included: Yes 1250 MWO motor with high overload protection and power for difficult applications Electronic shut-off turns the grinder off when the wheel is stalled or in a pinch, providing greater control and reduced tool damage Debris baffles deflect debris from air intakes, protecting internal components Multiport exhaust reduces motor burn up Soft-grip 3-position handle provides optimal control during various applications Burst-resistant guard can be quickly adjusted without a tool [Read more]
Store: Northern Tool and Equipment
Brand: Milwaukee
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Northern Industrial Air Angle Grinder - 5in. Disc Capacity, 1/4in. Inlet, 5 CFM, 10, 000 RPM
$69.99
Heavy-duty angle grinder features stall torque resistance thats twice as much as regular tools. Powerful twin-chamber motor delivers higher torque and power than that of conventional air motors and substantially increases work efficiency. The ergonomic grip handle is a textured rubber that maintains a comfortable temperature in the hand while reducing vibration. Disc not included Adjustable disc shield Side exhaust vent Includes spanner wrenches [Read more]
Store: Northern Tool and Equipment
Brand: Northern Industrial Tools
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- Milwaukee Large Angle Grinder - 7in./9in., 15 Amp, Model# 6088-31
$179.99
The Milwaukee 7in./9in. 15 Amp Large Angle Grinder (Non Lock-on) delivers performance and durability for the most difficult grinding jobs. The tool-free burst resistant guard allows the user to quickly adjust the guard without the use of a tool. Wheel Diameter (in.): 7 or 9, Amps: 15, Speed (RPM): 6, 000, HP: 4.2, Switch Type: Trigger (w/o lock-on), Spindle Thread Size: 5/8 in. - 11, Spindle Lock: Yes, Side Handle: Yes, Cord Length (ft.): 8, Wheel Included: Yes, Wrench Included: Yes Baffles keep debris out of intake vents to protect internal components External brush doors allow easy access to brushes Soft-grip handle provides better control and handling Tool-free, burst-resistant guard is easy adjusted Both 7in. and 9in. Type 27 grinding guards are included for greater productivity [Read more]
Store: Northern Tool and Equipment
Brand: Milwaukee
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- Milwaukee Roto-Lok Grinder - 7in./9in., 15 Amp, Lock-On Trigger, Model# 6089-30
$179.99
The Milwaukee 7in./9in. 15 Amp Roto-Lok Large Angle Grinder w/Lock-on delivers performance and durability for the most difficult grinding jobs. A rotating, 9-position handle allows for better control in all orientations. Wheel Diameter (in.): 7 or 9, Amps: 15, Speed (RPM): 6, 000, HP: 4.2, Switch Type: Trigger (with Lock-On), Spindle Thread Size: 5/8 in. - 11, Spindle Lock: Yes, Side Handle: Yes, Cord Length (ft.): 8, Wheel Included: Yes, Wrench Included: Yes Baffles keep debris out of intake vents to protect internal components External brush doors allow easy access to brushes Soft-grip handle provides better control and handling Tool-free, burst-resistant guard is easy adjusted [Read more]
Store: Northern Tool and Equipment
Brand: Milwaukee
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- Milwaukee Roto-Lok Grinder - 7in./9in., 15 Amp, Non-Locking Trigger, Model# 6089-31
$189.99
The Milwaukee 15.0 Amp Large Angle Grinder (Non Lock-on) delivers performance and durability for the most difficult grinding jobs. This Roto-Lok grinder features a main grip that can be locked into 9 unique rotational positions to match hand orientations with applications such as cutting or working at unusual angles. Wheel Diameter (in.): 7 or 9., Amps: 15, Speed (RPM): 6, 000, HP: 4.2, Switch Type: Trigger (w/o Lock-On), Spindle Thread Size: 5/8 in. - 11, Spindle Lock: Yes, Side Handle: Yes, Cord Length (ft.): 8, Wheel Included: Yes, Wrench Included: Yes Baffles keep debris out of intake vents to protect internal components External brush doors allow easy access to brushes Soft-grip handle provides better control and handling Tool-free, burst-resistant guard is easily adjusted [Read more]
Store: Northern Tool and Equipment
Brand: Milwaukee
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- Chicago Pneumatic Angle Grinder/Cutoff Tool - 2in., Model# CP7500D
$149.99
This angle grinder converts into a 2in. cutoff tool. Disc Diameter (in.): 2, Air Consumption (CFM): 8, Air Inlet Size (in. NPT): 1/4, Min. Hose Size (in.): 3/8 [Read more]
Store: Northern Tool and Equipment
Brand: Chicago Pneumatic
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Chicago Pneumatic Mini Angle Grinder - 120-, Model# CP7563
$99.99
A mini angle grinder from Chicago Pneumatic. CFM at Load: 21, Air Inlet Size (in. NPT): 1/4, Min. Hose Size (in.): 3/8, Collet Size (in.): 1/4 120 angle [Read more]
Store: Northern Tool and Equipment
Brand: Chicago Pneumatic
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- Milwaukee Small Angle Grinder - 4 1/2in./5in., 12 Amp, Lock-On Paddle Trigger, Model# 6116-30
$139.99
The Milwaukee 4 1/2in./5in. Small Angle Grinder w/ Lock-on delivers performance, durability and ease-of-use features for industrial users. The X-large paddle switch with lock-on increases comfort and ease-of use when operating the grinder in various positions. Milwaukees Advanced Electronics provide the highest performance with features like Electronic Shut-Off, Constant Power Technology and Overload Limit Protection. Wheel Diameter (in.): 4 1/2 or 5, Amps: 12, Speed (RPM): 10, 000, Switch Type: Paddle w/Lock-on, Spindle Thread Size: 5/8in.-11, Spindle Lock: Yes, Side Handle: Yes, three-position, Variable Speed: No, Cord Length (ft.): 8, Wheel Included: Yes, Wrench Included: Yes, Case Included: No 1490 MWO motor with high overload protection and power for difficult applications Electronic shut-off turns the grinder off when the wheel is stalled or in a pinch, providing greater control and reduced tool damage Debris baffles deflect debris from air intakes, protecting internal components Multiport exhaust reduces motor burn up SoftGrip 3-position handle provides optimal control during various applications Burst-resistant guard can be quickly adjusted without a tool [Read more]
Store: Northern Tool and Equipment
Brand: Milwaukee
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- Milwaukee Small Angle Grinder - 12 Amp, 4 1/2in./5in., Non-Locking Paddle Trigger, Model# 6116-31
$139.99
The Milwaukee 12.0 Amp Small Angle Grinder (Non Lock-on) delivers performance, durability and ease-of-use features for industrial users. The X-large paddle switch with lock-on increases comfort and ease-of use when operating the grinder in various positions. Wheel Diameter (in.): 4 1/2 or 5, Amps: 12, Speed (RPM): 10, 000, Switch Type: Non-locking paddle, Spindle Thread Size: 5/8in.-11, Spindle Lock: Yes, Side Handle: Yes, three-position, Variable Speed: No, Cord Length (ft.): 8, Wheel Included: Yes, Wrench Included: Yes, Case Included: No 1490 MWO motor with high overload protection and power for difficult applications Electronic shut-off turns the grinder off when the wheel is stalled or in a pinch, providing greater control and reduced tool damage Debris baffles deflect debris from air intakes, protecting internal components Multiport exhaust reduces motor burn up Soft-grip 3-position handle provides optimal control during various applications Burst-resistant guard can be quickly adjusted without a tool [Read more]
Store: Northern Tool and Equipment
Brand: Milwaukee
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- Milwaukee Small Angle Grinder - 12 Amp, 4 1/2in./5in., Slide Switch, Model# 6116-33
$139.99
The Milwaukee 12.0 Amp Small Angle Grinder delivers performance, durability and ease-of-use features for industrial users. Advanced electronics provide the highest performance with features like Electronic Shut-Off, Constant Power Technology and Overload Limit Protection. Wheel Diameter (in.): 4 1/2 or 5, Amps: 12, Speed (RPM): 10, 000, Switch Type: Slide, Spindle Thread Size: 5/8in.-11, Spindle Lock: Yes, Side Handle: Yes, three-position, Variable Speed: No, Cord Length (ft.): 8, Wheel Included: Yes, Wrench Included: Yes, Case Included: No 1490 MWO motor with high overload protection and power for difficult applications Electronic shut-off turns the grinder off when the wheel is stalled or in a pinch, providing greater control and reduced tool damage Debris baffles deflect debris from air intakes, protecting internal components Multiport exhaust reduces motor burn up SoftGrip 3-position handle provides optimal control during various applications Burst-resistant guard can be quickly adjusted without a tool [Read more]
Store: Northern Tool and Equipment
Brand: Milwaukee
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- Milwaukee Trigger Grip Grinder - 12 Amp, 5in./6in., Lock-On Paddle Trigger, Model# 6123-30
$149.99
The Milwaukee 12.0 Amp Trigger Grip Grinder w/ Lock-on delivers performance, durability and ease-of-use features for industrial users. The trigger grip handle with lock-on increases productivity by providing optimal control, reach and leverage for a variety of applications. Wheel Diameter (in.): 5 or 6, Amps: 12, Speed (RPM): 9, 000, Switch Type: Trigger (with Lock-On), Spindle Thread Size: 5/8 in. - 11, Spindle Lock: Yes, Side Handle: Yes, Variable Speed: No, Cord Length (ft.): 8, Wheel Included: Yes, Wrench Included: Yes, Case Included: No 1490 MWO motor with high overload protection and power for difficult applications Electronic shut-off turns the grinder off when the wheel is stalled or in a pinch, providing greater control and reduced tool damage Debris baffles deflect debris from air intakes, protecting internal components Multiport exhaust reduces motor burn up Soft-grip 3-position handle provides optimal control during various applications Burst-resistant guard can be quickly adjusted without a tool [Read more]
Store: Northern Tool and Equipment
Brand: Milwaukee
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- Milwaukee Trigger-Grip Grinder - 12 Amp 5in./6in., Non-Locking Paddle Trigger, Model# 6123-31
$149.99
The Milwaukeee 12.0 Amp Trigger Grip Grinder (Non Lock-on) delivers performance, durability and ease-of-use features for industrial users. The trigger grip handle with lock-on increases productivity by providing optimal control, reach and leverage for a variety of applications. Wheel Diameter (in.): 5 or 6, Amps: 12, Speed (RPM): 9, 000, Switch Type: Trigger (w/o Lock-On), Spindle Thread Size: 5/8 in. - 11, Spindle Lock: Yes, Side Handle: Yes, Variable Speed: No, Cord Length (ft.): 8, Wheel Included: Yes, Wrench Included: Yes, Case Included: No 1490 MWO motor with high overload protection and power for difficult applications Electronic shut-off turns the grinder off when the wheel is stalled or in a pinch, providing greater control and reduced tool damage Debris baffles deflect debris from air intakes, protecting internal components Multiport exhaust reduces motor burn up SoftGrip 3-position handle provides optimal control during various applications Burst-resistant guard can be quickly adjusted without a tool [Read more]
Store: Northern Tool and Equipment
Brand: Milwaukee
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- Milwaukee Cutoff Grinder - 12 Amp, 6in., Non-Locking Paddle Trigger, Model# 6160-30
$149.99
The Milwaukee 12.0 Amp Cutoff Grinder delivers performance, durability and ease-of-use features for industrial users. The trigger grip handle with lock-on increases productivity by providing optimal control, reach and leverage for a variety of applications. Wheel Diameter (in.): 6, Amps: 12, Speed (RPM): 9, 000, Switch Type: Trigger (w/o Lock-On), Spindle Thread Size: 5/8 in. - 11, Spindle Lock: Yes, Side Handle: Yes, Variable Speed: No, Cord Length (ft.): 8, Wheel Included: Yes, Wrench Included: Yes, Case Included: No 1490 MWO motor with high overload protection and power for difficult applications Electronic shut-off turns the grinder off when the wheel is stalled or in a pinch, providing greater control and reduced tool damage Debris baffles deflect debris from air intakes, protecting internal components Multiport exhaust reduces motor burn up Soft-grip 3-position handle provides optimal control during various applications Burst-resistant guard can be quickly adjusted without a tool [Read more]
Store: Northern Tool and Equipment
Brand: Milwaukee
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- Milwaukee Cutoff Angle Grinder - 12 Amp, 6in., Non-Locking Paddle Trigger, Model# 6160-31
$149.99
The Milwaukee 12.0 Amp Cutoff Angle Grinder (Non Lock-on) delivers performance, durability and ease-of-use features for industrial users. Advanced electronics provide the highest performance with features like Electronic Shut-Off, Constant Power Technology and Overload Limit Protection. Wheel Diameter (in.): 6, Amps: 12, Speed (RPM): 9, 000, Switch Type: Paddle (w/o Lock-On), Spindle Thread Size: 5/8 in. - 11, Spindle Lock: Yes, Side Handle: Yes, Variable Speed: No, Cord Length (ft.): 8, Wheel Included: Yes, Wrench Included: Yes, Case Included: No 1490 MWO motor with high overload protection and power for difficult applications Electronic shut-off turns the grinder off when the wheel is stalled or in a pinch, providing greater control and reduced tool damage Debris baffles deflect debris from air intakes, protecting internal components Multiport exhaust reduces motor burn up SoftGrip 3-position handle provides optimal control during various applications Burst-resistant guard can be quickly adjusted without a tool [Read more]
Store: Northern Tool and Equipment
Brand: Milwaukee
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- Milwaukee Cutoff Grinder - 12 Amp, 6in. with Slide Switch, Model# 6160-33
$149.99
The Milwaukee 12.0 Amp Cutoff Grinder w/ Side Switch delivers performance, durability and ease-of-use features for industrial users. The trigger grip handle with lock-on increases productivity by providing optimal control, reach and leverage for a variety of applications. Wheel Diameter (in.): 6, Amps: 12, Speed (RPM): 9, 000, Switch Type: Slide, Spindle Thread Size: 5/8 in. - 11, Spindle Lock: Yes, Side Handle: Yes, Variable Speed: No, Cord Length (ft.): 8, Wheel Included: Yes, Wrench Included: Yes, Case Included: No 1490 MWO motor with high overload protection and power for difficult applications Electronic shut-off turns the grinder off when the wheel is stalled or in a pinch, providing greater control and reduced tool damage Debris baffles deflect debris from air intakes, protecting internal components Multiport exhaust reduces motor burn up Soft-grip 3-position handle provides optimal control during various applications Burst-resistant guard can be quickly adjusted without a tool [Read more]
Store: Northern Tool and Equipment
Brand: Milwaukee
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Chicago Pneumatic 7in. Air Angle Grinder - 1 1/4 HP, 3/8in. Inlet, 6 CFM, 7500 RPM, Model# CP857
$369.99
Chicago Pneumatic 7in. heavy-duty angle grinder features a high-performance motor for fast metal removal. Tool is rugged, yet lightweight. Excellent for weld preparation and smoothing, rust removal, deburring and blending of steel, cast iron and aluminum. Disc Diameter (in.): 7, Air Consumption (CFM): 6, Speed (RPM): 7, 500, Air Inlet Size (in. NPT): 3/8, Min. Hose Size (in.): 3/8, Collet Size (in.): 5/8 - 11, Side Handle: Yes, Tool Weight (lbs.): 6 1/4, Tool Length (in.): 13 3/8 Use for cleaning, deburring, blending, and smoothing Spiral bevel gearing Aluminum alloy housing Use with 7in., type 27 grinding wheels for cleaning, deburring, blending, and smoothing [Read more]
Store: Northern Tool and Equipment
Brand: Chicago Pneumatic
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Operations with portable grinders.
Before operating any portable grinder, check the grinding wheel for cracks and check that the arbor hole is the proper size for the grinder to be used. When operating these grinders, keep a light pressure on the work to avoid damaging the wheel or overheating the workpiece.
Both the small and the larger portable grinders operate at a high speed, so avoid letting the wheel rest on one spot for too long. This could cause the work to burn or the wheel to crack and explode. Always check the manufacturer’s instruction manual before operation to ensure the grinding wheel’s maximum rated speed is rated higher than the maximum speed of the grinder.
When grinding, buffing, or polishing with any portable grinder, always keep a firm grip on the tool to avoid injury or damage to equipment.
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Operaciones con amoladoras portátiles.
Antes de hacer funcionar cualquier amoladora portátil, compruebe el estado del disco abrasivo para saber si hay grietas y compruebe que el agujero de las pinzas portapiezas o agujero del eje es del tamaño apropiado para que la amoladora sea utilizada. Al hacer funcionar estas amoladoras, mantenga una presión ligera sobre el objeto de trabajo para evitar dañar el disco o recalentar dicho objeto.
Tanto las amoladoras portátiles pequeñas y como las más grandes funcionan a alta velocidad, así que evite dejar la rueda apoyarse sobre un punto durante demasiado tiempo. Esto podría hacer que el objeto de trabajo se queme o que el disco se agriete y estalle. Compruebe siempre el manual de instrucciones del fabricante antes de que la operación, para asegurarse que la velocidad máxima permitida del disco abrasivo se encuentre por encima que la velocidad máxima de la amoladora.
Cuando realice el amolado, lustre, o pulido con cualquier amoladora portátil, mantenga siempre una presión firme en la herramienta para evitar cualquier lesión o daño al equipo. |
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