"Excellent replacement for an old well-used LIDL hammer drill. The head of the retaining screw (LH thread) in the old chuck had worn down but its thread stripped easily when I put a large allen key in the chuck and wacked it anti-clockwise with a hammer. Cut slot in head of old screw and re-fitted. Too early to comment on reliability but it looks as if it will last OK."
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Review 3 for Universal Keyed Chuck ½" x 20 Female Thread