Milwaukee SDS-MAX MX4 5/8"X 30" X 36" features the MILWAUKEE® MX4™ 4-Cutter SDS Max Rotary Hammer Drill Bits with solid head carbide that deliver up to five times longer life in concrete with rebar. These bits are engineered with rebar guards to provide maximum durability in hard aggregate and rebar, ensuring reliable performance in tough conditions. Designed with sharp centering tips, they allow for exact spot drilling in concrete, while the integrated 4-cutter design prevents lock-up in rebar, reducing downtime on the job. Optimized flutes efficiently remove dust faster, reducing heat buildup and enabling up to 15% more holes per battery charge. Each drill bit includes a wear mark indicator to show when it no longer meets ANSI requirements. These MILWAUKEE® MX4™ 4-Cutter Drill Bits are i for use in concrete with rebar and masonry applications, making them a durable and efficient choice for professionals. Model Number: 48-20-3922