30pcs 0.7mm diamond coated hole saw drill Solid bits Jewelry Gems  Glass Tile Ceramic Marble Granite

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

Product Specification:

Head Diameter :0.7mm

Total length :1-21/32" (42mm), can drill 3 mm depth

Shank diameter: 0.093" (2.35mm)

Drilling speed:  Drill a Holes In Seconds

Use with water as a lubricant

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.