Milwaukee M/2 2-cutter SDS-Plus Rotary Hammer Drill Bits are the most durable 2-cutter bits with up to 20% more holes per charge in cordless rotary hammers. The enhanced rebar guards provide increased durability in hard aggregate and rebar. The breaker point pulverizes the material more effectively, resulting in faster drilling speeds. The variable flute allows for maximum debris extraction leading to up 20% more holes per charge in your cordless or electric rotary hammer, making it a very durable bit. Additionally, M/2 features a centering tip for exact spot drilling, a wear mark indicator indicating when the bit no longer meets ANSI diameter requirements, and a reinforced flute for durability and minimized vibration. Must be purchased in multiples of 25.