IRWIN IWAX2006 Speedbor Supreme 1 3 4 in X 6 in Woodboring Self Feed Drill Bit Reamers this miniature cutter mattock is this miniature cutter mattock is built to withstand tough outdoor conditions Spline or 3 4" hex 21 32" About Model Features For driving rods into the ground without the use of a heavy sledge hammer 10" long and fits ground rods up to 3 4" diameter For use with Spline or 3 4" hex 21 32" shank hammers Durable metal construction for long life Specs Product Type (RHB CHARGE THROUGH NAIL EMBEDDED WOOD: High speed steel cutting edge maintains its sharpness HIGH PERFORMANCE DRILLING: Pull through material with speed and ease with an aggressive parabolic screw tip