30Pcs SPHERICAL CONCAVE Head Diamond Grinding Tip Bits Set Lapidary Carving Tools Code YDZ-QZ-8Q-15Q-20Q-2.35mm-30Pcs

Product Specification:

Product Name:Diamond Grinding Head

Head Shape: Spherical Concave

Head Diameter :  0.8mm/1.5mm/2mm 

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

Shank diameter:  2.35mm (3/32"); Suitable for electric nail drill, carving machine with a 3/32" collet

Grit: 150 Medium

Quantity:  Total 30Pcs, each size 10Pcs

Recommended speed: 5000-50000 RPM, electric grinder speed as high as possible.

The mounted point can be installed on the electric grinder, hanging mill and hand electric drill (not included here). Never use drills while machine is in hammer action.

Product use:  Apply to stone carving, jade carving, gem peeled, bone carving, egg decorating, glass carving etc.

Used for sculpturing, dressing, precision grinding and internal grinding carbide in ceramic, glass, precious stone, alloy and many the abrasive materials

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 List Any Size (Head Diameter from 3mm - 40mm) & 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 (3/32" inch)

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