Rugged and precise driver for multiple production uses. Stainless steel ¼” hex receiver for all standard drive bits. Non-magnetic spring loaded bit holder. Precise 1/8” hex adjustment screw makes setting torque quick and easy. Hex key included with each driver. Cam-over torque limiting clutch. Lightweight, rugged construction with comfortable shape and non-slip grip. Permanently lubricated internal mechanism. 4-40 in/lbs.