Dia.20mm Laser Welded Diamond Dry Core Drill Bit With Side Protection M14 Thread Diamond drilling bits 

Application: Drilling hard granite marble all mature stone concrete

This diamond core drill bit for sandstone are produced by silver welding.It can be suitable for stand drilling machines or electrical hand-held drillers or CNC machine.For stone core,does not damage the stone.

Feature:

1. Laser welded technology avoid segments off when dry working

2. Dry or Wet Drilling - use wet will greatly prolong the segment life 

3. Vacuum brazed side protection offers clean cut & steel core protection (inside and outside both)

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

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

Specification:

Diameter: 20MM, Total length:100MM, Thread: M14

Available diameter: 20mm, 25mm, 32mm, 35mm, 38mm, 50mm, 65mm

(Please double check it can be installed on your machine)

Customize service: 

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

Dia. 20mm Laser Welded Diamond Dry Core Drill Bit With Side Protection M14 Thread

More Related core bit, Pls click here: Diamond Core Drill Bit

Diamond Core Drill Bits packing in the carton.
We can also pack the drill bits according to your requirements.
Special specifications need to be negotiated with us before the delivery date.

Fujian Nanan Boreway Machinery Co.,Ltd.