Topeak D-Torq Digital Torque Wrench When working with expensive bike parts, you don't want to run the risk of over/under tightening which could damage your bike or provide safety risks. The Topeak D-Torq Digital Torque Wrench provides a digital readout that provides a visible display while also providing audible warnings for your target torque value. It also features a reversible head, standard 3/8" square drive, and can measure up to 4 units. Topeak D-Torq Digital Torque Wrench Features Tools: Reversible Ratchet Wrench 3/8" Square Drive Allen Bits: 3/4/5/6/8/10 mm Torx(R) Bits: T25/T30/T40 Screw Drivers: #2 Phillips Sockets: 8/9/10/11/12/13/14/15 mm Adapter: 3/8" Square Drive Adapter For Use With Bits Unit: 4 unit (Nm/kg cm/in lb/ft lb) Battery: AAA x 2 (included) Battery Life: 48 hr Material: Hardened Steel/ Engineering Grade Plastic Added Features: Pre-set Torque Valve Warning Sound For Over Pre-set Torque Valve LCD Display Auto Off Weight: 430 g / 15. 13 oz | Topeak | D-Torq Digital Torque Wrench | Black | 4-80Nm