NACX 4mm Ball Shape Diamond Points Grinding Bit, 1/8" Shank Diamond Burr Bit, Diamond Burr Rotary Tool, for Jade, Jewelry, Stone, Ceramic, Grinding, Carving, Polishing, 25Pcs

Product Specifications: Product Name : Diamond Points Grinding Bit Head Shape : Ball Shape Material : Metal and Diamond Head Diameter : 4mm / 0.15” Shank Diameter : 3mm / 1/8" Total Length : 45mm / 1.77" Color : Silver Tone Feature: Made of diamond with reliable quality, with high hardness, good abrasion resistance. The diamond burr bit, has high hardness, good wear resistance, uniform particles, and can serve you for a long time. Can be installed on the electronic grinder, engraving machines, hanging mill and hand electric drill. Widely used: very suitable for handicrafts, hobbies, home repair tools, jewelry tools, gemstone use, modeling. Package Included: 25Pcs Ball Shape Diamond Points Grinding Bit