Makes punch or chisel control easy, knuckles are out of the way and helps avoid damage or missed strikesInsert tool shank into collar, turn handle to force tool against tough PVC coated VsectionNylon point on forcing screw and vinyl covered section of collar provide a resilient positive grip which will not pop loose on impactMade of steel with zinc and black oxide finishComfort grip handlePunch/Chisel Holder, Screw Clamps to 3/4 in. Chisels.