Milwaukee SDS+ CORE masonry core bits are designed for drilling large holes in brick, block, and concrete using SDS Plus rotary hammers. Featuring asymmetrical carbide teeth, these bits break up material more effectively, delivering up to 20% faster drilling speeds. The centering bits ensure easy alignment and precise spot drilling, while the versatile two-piece design allows users to work with several core bit sizes using a single adapter. The spiral core body minimizes friction and helps remove dust during drilling. These core bits cut with the outer edge only, so for holes deeper than 2 inches, the inner core must be removed to continue drilling. Model Number: 48-20-5240