20pcs 3mm Shank Diamond Grinding Burr Drill Bits Sets for Dremel Rotary Tools

Color: Sliver

Material: Diamand+metal

Size: All shank diameter about 3mm, all grinding diameter about 6mm.Total length about 45mm.

Weight: 71g

Fit for: Grinding, engraving, cutting lines, polished, hollow, jade carving, glass engraving,etc.
 

Good workmanship, reliable quality, suitable for hanging mill,  electric mill, engraving machines, electric machinery and supporting assembly.

Mainly used to polish glass, jade, repair abrasive and other hard objects.

Electroplated diamond grinding, it is a deal correction tool for processing of various molds, carbide, glass instruments, and jade carving.