The MILWAUKEE® SDS Plus 4-Cutter MX4™ 1/2" X 16" X 18" Drill Bits with solid head carbide deliver up to 5X longer life in concrete with rebar. Engineered with rebar guards to provide maximum durability in hard aggregate and rebar with a 4-cutter design that prevents lock-up, reducing downtime. The sharp centering tip offers exact spot drilling in concrete and metal decking. Variable flutes remove dust faster, reducing heat and delivering up to 20% more holes per battery charge. A wear mark indicator shows 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.

Milwaukee® MX4™ Rotary Hammer Drill Bit, 4-Cutter, 1/2 in, 18 in Overall Length, 16 in Cutting Depth, 4 Flutes, Spiral Flute, 16 in Flute Length, 25/64 in Shank, Centering Point, Carbide Cutting Edge, Solid Carbide, Silver, Applicable Materials: Concrete, Masonry and Reinforced Concrete