Irwin 322022 Hammer Drill Bit, 5/16" x 4" x 6" High Security Not flake resistant and should

Not flake resistant and should not be used for multi-coat applications

Undercut head cleanly penetrates the hard outer layer of capstock decking

Includes pump stand and rigid steel foot base

Removes thick dirt

Irwin 322022 Hammer Drill Bit, 5/16" x 4" x 6" High Security Not flake resistant and shouldFits 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