1/2 Inch Drive x 11/16 Inch Hex Impact Bit Socket Live External Thread: 1-1/4"-7

External Thread: 1-1/4"-7

Part Number: BIT-D/ACO3/8X11/16

A detent pin hole on one side of the drive end also supports engagement with detent pin anvil styles

STI Tap: M10-1

1/2 Inch Drive x 11/16 Inch Hex Impact Bit Socket Live External Thread: 1-1/4"-7Size is marked both with a high visibility laser marking and a permanent stamped marking that won't wear off 6 sided hexagonal S2 steel bit tip is machined to precise tolerances for an exact fit with hex fasteners Two piece design allows bit and socket to be optimized separately, for a more durable tool than traditional one piece designs Drive end is made of 4140 chromium molybdenum (Cr Mo) steel and properly heat treated for use on impact wrenches