Description:

Quantity:Only 20Pcs Total length:42mmGrit:150 Medium.. Speed: 2800-30000 RPM Head Shape:SPHERICAL CONCAVE Head. Head Diameter:0.8mmShank Diameter:2.35mm(3/32"); Suitable for electric nail drill, carving machine with a 3/32" collet.. 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.