[3Pcs Diameter 9mm]

Item Description:

Diamond Mounted Point SPHERICAL CONCAVE Head Grinding Bit 3-10mm Grit 400 Jade Carving Tools

Product Name: Gemstone carving tools, Diamond carving burrs, Jade carving tools, Diamond grinding bit Spherical Concave head

Head Shape: Spherical Concave Head

Grit: 400 Fine

Quantity: Total 3 Pieces

Please choose from the menu which option best qualifies your need. Available Head Diameter as below:

When you need to grind what diameter ball, please choose the same outer diameter of spherical concave head grinding bit

Such as: If you choose 10mm outer diameter of spherical concave head grinding bit, then you can grinding a 10mm outer diameter ball

Outer Diameter|Internal Diameter|Shank Diameter|Total Length|Quantity

3mm (1/8")|2.5mm|3mm|50mm|3Pcs

4mm(5/32" )|3.5mm|4mm|50mm|3Pcs

5mm(3/16")|4.5mm|5mm|50mm|3Pcs

6mm(close to1/4")|5mm|6mm|50mm|3Pcs

7mm(9/32" )|6mm|6mm|50mm|3Pcs

8mm (5/16" )|6.8mm|6mm|50mm|3Pcs

9mm(11/32" )|7.8mm|6mm|50mm|3Pcs

10mm(3/8" )|8.5mm|6-8mm|51mm|3Pcs

The concave arc is not a semicircle (shallower than a semicircle)

Product use:

Apply to jade carving, stone carving, bone carving, glass carving etc. Especially suitable for forming and grinding spherical bead, etc.

Used for sculpturing, precision grinding in precious stone, ceramic, glass, many the abrasive materials

The speed of 2000-5000 r/min

The Diamond grinding head can be installed on the Bench drilling machine, hand electric drill (not included here). Never use drills while machine is in hammer action.

Use with water as a lubricant

Note: carving must use cold water to cool the workpiece and the grinding head polishing, moment also can’t do without water

We Can Provide other Size & Grit of the Diamond Mounted Point SPHERICAL CONCAVE Head

Item Specification:

Type: Abrasive