Wheeler Combo Tool with Torque Wrench. Cover most of your service needs with just 1 tool! An armourer's best friend! This Combo Tool's durable steel construction allows for the use of hardened steel barrel nut pins designed to hold up to heavy torque requirements. It's coupled here with a Torque Wrench to ensure proper barrel nut torque for maximum accuracy. More: Cutout for 1/2" drive for use with torque wrench or ratchet driver; Profiles for buffer tube lock nut and flash hider included; Includes bit driver and bit holder with 6 common bits. Measures 16 1/2"l. Wrench measures 21"l. ; Order Now! Wheeler Combo Tool with Torque Wrench.