Two hex bits for installing the bolt carrier key socket head screws, plus an adapter that will connect the Carrier Key Bits to the 3⁄8" Drive Torque Wrench. Small and large bits handle both early and late guns.
SPECS: Heat-treated steel. 185-2 Bit - 1⁄8" (3.2mm) hex bit. 185-10 Bit - 9⁄64" (3.6mm) hex bit. 1" (2.5cm) long. Adapter - Heat-treated steel with retention clip adapts 3⁄8" square drive to accept ¼" shank hex bits.
Catalog page 70, 438, 439, 442, 443