Diablo DSQ21P100 Insert Bit, #2 Drive, Square Drive, 1/4 in Shank, Hex Shank, 1 in L, HSS

Diablo's driver bit range of square bits delivers maximum performance, extreme durability and up to 50X longer life when installing and removing fasteners. An optimized tip design provides a strong, precise grip that reduces wear, stripping and slippage. Torque-resistant design absorbs torque for less stress at the tip when tightening and removing nuts and screws. This range is Impact Strong™, delivering increased shank stability and durability in cordless and corded impact and drill drivers.