3.0-16MM Drill Chuck Adapter, 1/2-20UNF Drill Chuck with Key, Key Type Drill Chuck Bit with Hex Head Adapter

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  • 3-16mm 1 2-20UNF 3-16mm denotes that clamp the drill between 3mm and 16mm, and 1 2-20UNF represents a screw hole with 1 2-20UNF at the back of the chuck.
  • By using anti-thrust bearing to convert key-applied torsion into superior gripping.
  • The clamping jaws are specially treated to improve wear resistance.

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