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.
15X Longer life versus carbide tip spade drill bit
10X Faster drilling than standard glass and tile d
Patented diamond sintered tip for easy start
Compatible with all corded and cordless drills
Large core ejection slot for easy material and plu
Reverse thread spiral for continuous water feed
Segmented cutting edge design for improved irrigat