M14 Ceramic Tile Hole Cutter Drill Bit Set For Granite Marble 4 Pcs diamond coated hole saw drill core bit
- Designed for the drilling of ceramic tiles, especially porcelain tiles, marble and granite.
- Average life 60 holes
- Fits on most angle grinder
- Usage：dry working
- Connect: M14 Europe thread
- Diamond length: 10 mm
- Place the drill at a 45 degree angle.
- Drilling till the hole start to form.
- Bring the drill up into upright position.
- Continue to drill and swaying the machine along a circle.