Description
Irwin, Type: HEX DRILL BIT EXTENSION, AUGER DRILL; ITEMS/FEATURES EXTENSION MINIMUM HOLE DIAMETER WILL FOLLOW THROUGH 1-1/16", HEX KEY, HEAVY DUTY DOUBLE SET SCREW TYPE; HEX TOOL END & STRAIGHT MOUNTING END, Size: 7/16" TOOL END; 1/2" MOUNTING END; 18" OVERALL LENGTH