One Piece SDS-Max Shank Core Drill Bit, 2-5/8", 3" Depth of CutIdeal for drilling large holes where the depth is relatively shallow Asymmetrical and alternating teeth for faster material pulverization Use of a centering bit is recommended The inside core must be removed by the operator before deeper drilling can be accomplished Bit Size: 2 5 8" Depth of Cut: 3" Manufacturer Part Number: 48 20 5414 Overall Length: 22"