- SMALL RESISTANCE:?Small incision resistance, opening speed is quickly, easy removal of chips and other advantages.Also help to open accurately. Large chip holes to ensure?that when the punching smooth, punching accurate.
- DURABLE:?Nickel-plated with a diamond dust coating offers superior performance and cutting strength.Extended service life.This diamond drill bits are high quality and good performance that excellent for making clean and accurate hole.
- IDEAL FOR:?This diamond coated core drill bit removes a complete circle from glass, marble, tiles,granite, ceramic or other.Reduced drill speeds, low drill pressure and increased use of water lubrication will extend drill bit life considerably.
TIP:?Can be used with a standard electric drill (not included), Always use lubrication (water), otherwise the diamond core drill will burn. Warnings: Not for use on Concrete or for depths beyond about 2″; Water is required for lubrication when drilling.
10 SIZES:?Total 10 different sizes (6mm,8mm,10mm,12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 30mm).Different sizes meet your different needs,help you in different places.
Package Size?5PCS–5-12mm,? ?10pcs–3mm-20mm
- Hole Depth: 35mm
- Package Contains?1 X?Glass Tile Marble Hole Drilling Bit Set