Makita (B-61444) 7/8" x 36" SDS-MAX Bit, 6-Cutter

6 Cutting Edges for Maximum Performance and Rounder Holes 6-cutter bit tip is engineered for drilling in reinforced concrete Centering tip features a more aggressive design for faster hole starting Central guiding action engineered for more accurate holes Aggressive head geometry in primary cutter engineered for use in concrete