48-20-5486 5" x 11-3/8" 1-Piece Spline Core Bit5" X 11 3 8" One Piece Spline Core Bit 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. Use of centering bit 48 20 5495 is recommended (not included). Use drift key 48 20 5497 to remove centering bit from the one piece core bit. The one piece core bits are