–100% brand new and high quality.
–Can be used with a standard electric drill.
–Always use lubrication (water), otherwise the diamond core drill will burn.
–Materials and only needs water for lubrication.
–This diamond coated core drill bit removes a complete circle from glass, marble, tiles,granite, ceramic or other.
Size: 6mm/0.23″, 8mm/0.31″, 10mm/0.39″, 12mm/0.47″,
14mm/0.55″, 16mm/0.62″, 18mm/0.7″, 22mm/0.86″,
Start your hole diagonally, make a round trace and then hold drill straight.
10 x Diamond Holes Saw Drill Bits