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 variable flute allows for maximum debris extraction leading to up 20% more holes per charge in cordless rotary hammer while making it a very durable bit in corded and cordless rotary hammers. The increased life and efficiency of the M/2 2-Cutter drill bit line provides the ideal solution in general concrete for cordless and corded rotary hammer users.