Irwin 322022 Hammer Drill Bit, 5/16" x 4" x 6" High Security Undercut head cleanly penetrates the

Undercut head cleanly penetrates the hard outer layer of capstock decking

No chance of spreading infection between animals

Removes thick dirt

resharpenable high speed steel blades for straight edging or framing applications

3" x 3" x 2" x 2"

Irwin 322022 Hammer Drill Bit, 5/16" x 4" x 6" High Security Undercut head cleanly penetrates theFits all SDS plus and Hilti TE C rotary hammers, Reduced area above the flute prevents the drill bit from binding while drilling the full usable length can be utilized, Chrome vanadium shaft through hardened to 50 53HrC, Patented tip and flute design removes dust more efficiently up to 25% faster than other bits, Shot peened, double tempered finish reduces breakage, Hot isostatically pressed to extend life and resist breakage, Copper braze material