[2620] 20Pcs 3mm Shank Diamond Grinding Burr Drill Bits Sets For Rotary Tools

100% brand new and high quality

Material: diamonds+metal

Color: Silver

Features:

Size: all shank diameter about 3mm, all grinding diameter about 6mm

Total length: about 45mm

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

Quantity:20Pcs

Package includes:

20pcs x grinding drill bits