Harbor Freight Tools


Pneumatic 4-1/2 in. Professional Angle Grinder

Quickly, precisely shape and cut metal with this professional angle grinder

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The CHIEF™ 4-1/2 in. Professional Air Angle Grinder has a rugged lightweight composite body for comfortable operation and handling. A paddle-style throttle lever with variable speed control provides superior results on applications from feather edging to full speed grinding.

  • Lightweight rugged composite body for easy handling
  • Variable speed control for working with a wide variety of materials
  • Paddle-style throttle lever for precise control
  • Rear exhaust directs air away from work

Important Information

  • Harbor Freight’s CHIEF products are not endorsed by or affiliated with Chief Automotive Technologies, Vehicle Services Group, LLC, or their affiliates.

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Disc size (in.)
4-1/2 in.
Exhaust location
Recommended hose size (in.)
3/8 in. ID
Accessories Included
Air inlet size
1/4 in. NPT
Arbor size
5/8 in.
Average air consumption
4 CFM @ 90 PSI
Speed (max)
12,000 RPM
Product Height
4 in.
Product Length
9-3/8 in.
Product Weight
4.5 lb.
Product Width
2-3/8 in.
Shipping Weight
4.90 lb.
Working pressure (psi)
90 PSI
Note: Specifications are approximate and subject to change

We guarantee this product to be free from defects in materials and workmanship 90 days from the date of purchase. Limitations apply.