Convert your 3/8" square drive impact tool into a powerful 1/4" hex bit driver when extra torque is needed.
Works great when driving extra-long deck screws, tightening anchor bolts, or removing stuck fasteners. The 1/4" drive works with any standard 1/4" hex shaft screwdriver bit. Positive-locking quick-change collar delivers wiggle-free bit retention and solid on-center rotation. Constructed of chrome molybdenum steel for heavy-duty impact applications and long service life.
Note: Manufacturer suggests using S2 HSS or stronger bits when using this adapter with any powered impact tool.