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Makita 9557NB   4-1/2
4-1/2" Hand Angle Grinder
Makita 9557NB
Labyrinth Construction Protects Against
Contamination
4-1/2" Makita Hand Grinder 9557NB
Features:
Small circumference barrel grip (only 2.5") for added comfort
Protective zig-zig varnish seals motor from contaminants by forming a barrier under
rotation
Labyrinth construction seals and protects the motor and bearings from dust and debris by
creating a complex set of channels
7.5 AMP motor design for high output power in a more compact tool (only 3.5 lbs.)
Thicker coil wires are wound more closely to reduce heat and energy loss
All ball bearing design and metal gear housing for durability
Rotatable gear housing rotates 90° for cutting applications
AC/DC switch for use with alternative power sources

Product Description
From the Manufacturer
This powerful 7.5 AMP 4-1/2" angle grinder has an exclusive labyrinth construction that
seals the motor and bearings from contamination. The 9557NB features a switch (AC/DC)
that is conveniently located on the top of the motor housing; a small circumference barrel
grip for easy handling, a high power-to-weight ratio and a double insulated motor. A spindle
lock makes for easy wheel changes and the side handle can be installed on either side of
tool. Kit includes grinding wheel, wrench, side handle, flange and wheel guard.

Product Description
Small circumference barrel grip (only 2.5in.) for added comfort. Protective zig-zig varnish
seals motor from contaminants by forming a barrier under rotation. Labyrinth construction
seals and protects the motor and bearings from dust and debris by creating a complex set
of channels. AC/DC switch for use with alternative power sources.  

4-1/2" Makita Hand Grinder 9577NB Specifications:
Grinding Wheel  4-1/2"  
Wire Cup Brush  3-1/2"  
Sanding Disc  4-1/2"  
No Load Speed  11,000 RPM  
AMPS (120V)  7.5  
Spindle Thread  5/8" x 11 UNC  
Length  10-5/8"  
Net Weight  3.5 lbs.  
Shipping Weight  6.3 lbs.  
UPC Code  088381062442  
4-1/2" Makita Hand Grinder 9557NB
Includes:
4-1/2’’ Grinding Wheel (741424-8-1)
Wheel Guard (125273-5)
Lock Nut (193465-4)
Lock Nut Wrench (782422-3)
Side Handle (153489-2)
Inner Flange (224399-1)
Model 9557NBX includes 4-1/2" Diamond Blade  
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