Micrometer Adjustable "Clicker" Ratchet Torque WrenchBall bearing signal mechanism. Compact, strong, and hard wearing tear-drop ratchet head. Scale stamped on spring tube. Detent-style locking collar. O-ring seal between ratchet head and spring tube. Emits audible click when torque setting is reached. Eliminates speed sensitivity errors. Tool resets automatically when pressure is relieved. Drive Size: 1/2 in; Drive Type: Male Square; Head Type: Pear; Head Width: 1 3/4 in; Includes: Factory Calibration Tape, Molded Plastic Case; Locking Type: Ball; Material: Cold Formed Steel; Measuring System: Inch; Overall Length: 20 1/2 in; Torque: 25.00 ft lb [Min], 250.00 ft lb [Max]; Torque Increment: 1.000 ft lb; Torque Setting: Micrometer; Weight: 2.45 lb.