IRWIN 1/2" x 12” x8" Hammer Drill Bit 326016 Pack of 3

B5R4 B3(New) IRWIN 1/2" x 12" x8" Hammer Drill Bit 326016 Pack of 3-------------------------------* Patented tip and flute design removes dust more efficiently.* Copper braze material gives high heat resistance.* Shot-peened, double tempered finish reduces breakage.Features and further details-------------------------------* Chrom Vanadiam shaft.