Milwaukee SDS-Max 4-Cutter MX4 Bit 1-3/4 in x 18 in x 23 in

Milwaukee?’s SDS-Max 4-cutter rotary hammer drill bits feature a 4-cutter 4 x 90° tip geometry to avoid lock up in rebar， patented rebar chamfers for increased durability， and a high volume flute for fast debris removal. Used for drilling holes in brick， block， concrete， and reinforced concrete.