Milwaukee 4-3/4" SDS PLUS Centering Core Bit is designed for efficient drilling of large holes in brick, block, and concrete using SDS Plus rotary hammers. Featuring asymmetrical carbide teeth, this core bit breaks up material more effectively, delivering up to 20% faster drilling speeds. Its centering design ensures easy alignment and precise spot drilling, making your work more accurate. The versatile two-piece construction allows you to use different core bit sizes with a single adapter, enhancing convenience and flexibility. Additionally, the spiral core body reduces friction and helps remove dust during drilling. The core bit cuts with the outer edge only, so for holes deeper than 2 inches, the inner core must be removed to continue drilling. Model Number: 48-20-3580