Milwaukee SDS Plus M2 2-cutter drill bits deliver up to 30 percent faster speed, with variable flute for up to 20 percent more holes-per-charge in cordless rotary hammers. The breaker point pulverizes your material more effectively, resulting in faster drilling speeds. Enhanced rebar guards provide increased durability in hard aggregate and rebar. Additionally features include: a centering tip for exact spot drilling; a wear mark indicator indicating when the bit no longer meets ANSI diameter requirements; a reinforced flute for durability; and minimized vibration. The increased life and efficiency of these steel drill bits provide the ideal solution in general concrete for cordless and corded rotary hammer users.