21mm black
Size21mm black
Special Features
- 【Size Reference】Gear Teeth Quantity: 11. Pilot Diameter: 8mm / 0.31 inch. Gear Diameter: 21mm / 0.83 inch.
- 【Solid & Durable】Made from solid carbon steel and coated with durable paint. Reduce stress damage in a certain limit.
- 【Main Purpose】Used for controlling tightness / looseness of electric drill clamping tool. Can be used in hammer or drilling mode.
- 【Keep Firm】Ideal for drill tightening and loosening a chuck, to keep your drill bits firmly in place.
- 【Wide Application】Helps with securing drill bits in hammer drills and is also universal for many other types of drills.
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