Bent Arm Pin Coil Lock

The CHANCE bent arm pin and coil lock are used to securely attach a Kelly Bar Adapter to a torque motor drive shaft or a Square Shaft or Round Shaft anchor/pile to the drive tool. Bent arm pins with coil locks are included with new tools as required. Order pins and coil locks for existing tools. Always use the approved combination of coil lock and bent arm pin. Never attempt to use any other retainer, such as a hair pin, cotter pin, etc., with a bent arm pin.