Multi Material Drill Bits are designed to drill into a variety of materials. These bits will drill in brick, block, tile, metal, wood plastic and marble. They'll even drill through multiple materials at the same time. The brazed carbide tip has a unique diamond ground 4-face design for excellent centered starts with little walking and best hole quality. The special Grind angle creates sharper tip edges for Fast starts in tough materials and the double ground flute ensures fast and efficient removal of the drilling dust and prevents clogging. The multi-material bit features a special duo tone surface finish that reduces friction & resistance, therefore increasing bit life and drill battery life.