Park Tool BT-2 Cable Stretcher. Commonly referred to as a “4th Hand” the Park Tool Cable Stretcher pulls cables tight for adjustment of derailleurs and brakes. It features one-hand operation with a thumb lock to hold the cable tight while your hand is freed up to tighten bolts and nuts. A must-have for any shop home or professional.One-hand operation with thumb lock
Made from chrome plated heat treated steel
Cushion grips for comfort