Chrome-vanadium steel and robust plastic dial. Tightens fasteners to angle torque values. Clear, easy-to-read angle gauge and accurate 2° graduations. Dual-length locking arm holds body in place. Compatible with non-impact 1/2″ drive tools. Chrome-vanadium steel and robust plastic dial. Tightens fasteners to angle torque values. Clear, easy-to-read angle gauge and accurate 2° graduations. Dual-length locking arm holds body in place. Compatible with non-impact 1/2″ drive tools.