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Makita 9557NB2 — 4-1/2" Angle Grinder, with AC/DC Switch

Makita 9557NB2 — 4-1/2" Angle Grinder, with AC/DC Switch

The Makita 4-1/2 in. Angle Grinder has a labyrinth construction that seals and protects the motor and bearings from dust and debris for a long life, with an additional, protective zigzag varnish that seals the motor from contaminants by forming a barrier under rotation. This UL-listed grinder provides high-output power with its 7.5 AMP motor that maintains a 11,000 RPM speed to produce excellent grinding with a 2-1/2 in. small-circumference, barrel-grip handle for added comfort. All ball-bearing design and metal gear housing provide durability.

Key Features

  • 7.5 AMP motor delivers 11,000 RPM for high output power
  • Compact design with small 2-1/2" diameter barrel and weighs only 4.5 lbs. for added comfort
  • Protective zig-zag varnish seals the armature from dust and debris for longer tool life
  • Labyrinth construction seals and protects the drive gear and bearings from dust and debris for increased durability
  • AC/DC slide switch for use with alternative power source
  • Thicker coil wires are wound more closely to reduce heat and energy loss
  • All-ball bearing design and metal gear housing for durability
  • Slide switch with lock-on for continuous use
  • Side handle can be positioned on both sides for operator convenience
  • Push button spindle lock for operator convenience

Technical Specifications

Wheel Diameter 4-1/2"
AMPS 7.5
No Load Speed 11,000 RPM
Spindle Type 5/8" - 11 UNC
Lock-On Switch Yes
Lock-Off Switch No
Overall Length 10-5/8"
Wire Cup Brush 3-1/2"
Net Weight 4.5 lbs.
Shipping Weight 13.4 lbs.
Bind-Up Control No

Included Accessories

  • 2 4-1/2" Angle Grinder (9557NB)
  • 2 4-1/2" Wheel Guard (125273-5)
  • 2 Lock Nut (193465-4)
  • 2 Lock Nut Wrench (782422-3)
  • 2 Inner Flange (224399-1)
  • 2 Side Handle (153489-2)

Manufacturer Resources

Makita 9557NB2 product details and documentation

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