48-20-5408 2" X 11-3/8" One Piece SDS-MAX Core BitSDS MAX One Piece Core Bits 1. 7 out of 5 stars, average rating value. Read 12 Reviews. Same page link. 1. 7 (12) MILWAUKEEs One Piece Carbide Tipped Core Bits are ideal for drilling large holes where the depth is relatively shallow. The core bit cuts a kerf only. The inside core must be removed by the operator before deeper drilling can be accomplished. Includes centering bit 48 20 5495. Use drift key 48 20 5497 (not included) to remove centering bit