Wheeler Delta Series AR Combo Tool, 156-999: * Cover most of your AR-15 service needs with a single tool * An innovative layered and laminated stamped steel construction makes this the most durable AR tool available * Hardy construction allows the use of hardened steel barrel nut pins designed to hold up to heavy torque requirements * A cut out for a 1/2" drive allows the tool to be used with a torque wrench or ratchet driver * Profiles for buffer tube lock nut and flash hider are included * Bit driver and bit holder with 6 common bits add to the versatility