The SDS-Max MX4™ 4-Cut Drill Bits from Milwaukee Tool are engineered for powerful, precise drilling in reinforced concrete. Featuring a large carbide tip with patented rebar chamfers and a robust 4 x 90° symmetrical head, they reduce vibration, prevent jamming on steel, and extend bit life. The centering point ensures accurate spot drilling, while reinforced flute geometry and deep shoulders provide fast dust removal, lower heat build-up, and improved energy transfer. With enhanced carbide content, wear marks for diameter accuracy, shot-blasted surface treatment, and PGM conformity, these bits deliver smooth performance and consistently precise anchor holes throughout their lifetime.