Features and Benefits:•1-3/8" Diameter•Includes Core Body with Guide Plate & Centering Pin•Thin Wall Design•Usable Cuting Depth 3-3/16"•Use With 7-1/2" Extension 48-95-6070•Use with 8" or 12" SDS PLUS Adapter Shanks (48-03-3545, 48-03-3551)•Use With Guide Plate 48-20-6152 and Centering Pin 48-20-6150Milwaukee®'s SDS-Plus thin wall core bits are used for drilling large through holes into brick, block, concrete. Includes core bit, guide plate, and centering pin.