Specification: Diameter: 20mm, 25mm, 30mm, 35mm 

Total Length: 105mm; Diamond Height: 10mm; Outer Thread: Gas1/2 (Suitable for CNC machine), Inner Thread: M14 (Suitable for angle grinder).

Application: Drilling hard granite marble all nature stone, ceramic/tile, concrete. Suitable for CNC machine and angle grinder. 

Feature: 

• Supreme Grade and Special bond matrix extends drilling life and improve the working efficiency

• Ideal for drilling the faucet mounting holes in stone countertops, plumbing lines in showers and vanities
  

• Wet drilling

• Two kinds of thread, one drill bit can suitable for two kinds of machine.                   
  

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Note: These products are marked with our brand. If you do not want our brand name, please leave us message, we could send you products without brand. 

Customize service: If you order 20pcs we could mark your brand name on our products