1pcs high quality golden diamond core drill bit hole opener for marble, concrete, granite, glass, tile, masonry drilling drill bits
specification:
100% quality and brand new.
name: golden diamond drill bit
material: high quality emery material
type: core drill bit
length: 60mm
hole diameter: 20-65mm
shank shape: 6-18mm is round shank, 20-65mm is triangle shank
shank diameter: 6-18mm is 6-9mm, 20-65mm is 10mm
application: suitable for marble, concrete, granite, tile, glass, etc
Features:
1. Dry drilling without water feeding, 6mm-12mm bits with Wax inside helps cooling the bits
2. Wide application for drilling tile ceramic granite marble stone...
3. Vacuum Brazed technology provide much longer working life than electroplated ones (Generally 3-5times)
4. Less Chipping, Minimizing breakage, less heat generation, Better finish quality
5. High diamond exposure rate provides a faster and more aggressive drilling.
6. Save your money and time...
Application: Used for opening holes in m