3/8" Carbide Tipped 4 Flute Glass & Tile Drill Bit, Drill America, Mfr#: DWD4FGD3/8

4 flute carbide tipped glass and tile drill bit improves speed, longevity and accuracy compared to standard spear-tipped glass and tile drills Glass and tile drills have a tungsten carbide tips Suitable for glass, mirrors & very hard ceramic tile Rotation only Slow drilling speeds are recommended