Brand: MILWAUKEE Features: Milwaukee®'s SDS-Plus Thin Wall Core Bits are used for drilling large through holes into brick, block, concrete. Specifications: Diameter: 1-1/8" Group: Core Bit Body Depth: 3-3/16" Cutting Depth: 3-3/16" Style: Thin Wall for SDS-PLUS Length: 3-3/16" Size: 1-1/8"