Montana Brand Diamond Tile drill bits provide outstanding performance in ceramic, porcelain, granite, slate, marble, glass and most all hard surface materials. Drill holes for water supply lines, drains, electrical/wiring, towel bars, and fixture installations. Also great for glass and decorative crafts.
Product Features & Benefits:
Black oxide coating prevents corrosion and increases performance
10X Faster drilling than standard glass and tile drill bits
15X Longer life versus carbide tip spade drill bits