1 3/8 in. x 23 in. 4 Cutter SDS MAX Carbide Drill

The Milwaukee SDS-MAX 4-Cutter MX4 1-3/8 x 23 in. Drill Bits deliver up to 5x longer life in concrete with rebar. Engineered with rebar guards to provide maximum durability in hard aggregate and rebar. MX4 4-Cutter bits are designed with sharp centering tips for exact spot drilling in concrete. The integrated 4-cutter design prevents lock-up in rebar, reducing downtime. Variable flutes remove dust faster, reducing heat and delivering up to 15% more holes per battery charge. This bit features wear mark indicators to show the end of life and when bit no longer meets the ANSI requirement. The Milwaukee MX4 4-Cutter Drill Bits are ideal for concrete with rebar and masonry applications.