[Diameter 17mm]

Item Description:

Diamond Mounted Point SPHERICAL CONCAVE Head Grinding Bit 10-25mm Grit 400 Jade Carving Tools

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

Head Shape: Spherical Concave Head

Grit: 400 Fine

Quantity: Only 1 Piece

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 20mm outer diameter of spherical concave head grinding bit, then you can grinding a 20mm outer diameter ball

Outer Diameter|Internal Diameter|Shank Diameter|Total Length|Grit

10mm (3/8")|8mm|6-8mm|51mm|400

11mm(7/16" )|9mm|6-8mm|51mm|400

12mm(15/32")|10mm|6-8mm|51mm|400

13mm(close to1/2")|11mm|6-8mm|51mm|400

14mm(9/16" )|12mm|6-8mm|51mm|400

15mm (19/32" )|13mm|6-8mm|51mm|400

16mm(5/8" )|14mm|6-8mm|51mm|400

17mm(43/64" )|15mm|6-8mm|51mm|400

18mm(23/32" )|16mm|6-8mm|51mm|400

19mm(close to 3/4")|17mm|6-8mm|51mm|400

20mm (3/4")|18mm|6-8mm|51mm|400

21mm|19mm|6-8mm|51mm|400

22mm (7/8")|20mm|6-8mm|51mm|400

23mm (29/32")|21mm|6-8mm|51mm|400

24mm(15/16")|22mm|6-8mm|51mm|400

25mm(close to 1")|23mm|6-8mm|51mm|400

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: c