30pcs 1.8mm diamond coated hole saw drill Solid bits Jewelry Gems  Glass

The diamond coated hole saw suitable for use in drill hole on Jewelry, Gems, glass, marble, tile or granite.

Diameter : 1.8mm

Total length :  1.7" (42mm), can drill 9mm depth

Shank diameter:   0.093" (2.35mm),

The drill bit is suitable for electric nail drill, Caring machine with a 3/32 "collet. Recommended speed: 18000 RPM.

Drilling speed:Drill a Holes In Seconds

Quick Tips

1.    Please add water for coolant and drill slowly

2.    start drill at 45 Degree to surface and align to 90 Degree as hole forms

3.    Never use drills while machine is in hammer action.

4.    Holes Require No Futher Work As Cutting Is Clean 

We Can List Any Size (1mm - 230mm) & Amount Of This Product

We will send out your order within 1-2 days after payment has been received and cleared. Please let us know if you are looking for other accessories or hardware. Should you have any queries, please contact me directly.