15Pcs 0.5mm and 15Pcs 0.8mm Diamond Coated Hole Saw Drill Solid Bits For Jewelry Gemstone Glass Tile Ceramic Marble Granite Code:0.5A-15Pcs &0.8A-15Pcs

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

Head diameter :  0.5mm /0.8mm

Total length : 42mm (1-21/32")

Drilling depth:  3mm depth

Shank diameter:  2.35mm (3/32")

Suitable for electric nail drill, carving machine, machinery supporting assembly with a 3/32" collet

Quantity: Total 30 Pcs  ( Including 15 Pcs 0.5mm  and 15Pcs 0 .8 mm)

Material:  Metal, diamond

Drilling speed: Drill a hole 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 (Head Diameter from 0.4mm - 3mm)& 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. 

Just a friendly reminder: The Shank diameter of grinding bit is 2.35mm (close to 3/32")

There are two different collet sizes for Dremel: 3mm (1/8") or Universal 3-jaw chuck

If your chuck of Dremel(models 4300-8050) has an Universal 3-jaw chuck, then the grinding bit can be installed directly

However, it is NOT suitable for dremel with 3mm 1/8" chuck(such as:models 3000,4000)

If your chuck of Dremel is 3mm (1/8"), maybe you need add the Universal 3-jaw chuck for Dremel