Bowl Shape Diamond Burr with 1/4'' Shank 5/8 inch Wood Beads Rounding Bit 16mm Concave Head Rounder Bits for Die Grinder Rotary Tool Natural Stone Beads Bracelet Necklace Macrame Jewelry Making

Package Content : 1PCS Diamond Beads Grinding Bit Used for polishing jade carving, stone carving, bone carving, glass etc. Specially used for forming and grinding spherical bead. Size:Head Diameter : 16mm; Shank Diameter : 6mm; Total Length : 50mm Easy to Use: Can be used on bench drills, hand drills (not included here). The recommended speed is 2000-3000 rpm/min, for general purpose grinding in wide ranges of applications. Application：If you want to end up with a 14mm bead , choose a 16mm coarse diamond burr and a 14mm fine diamond bur.

• Package Content : 1PCS Diamond Beads Grinding Bit
• Used for polishing jade carving, stone carving, bone carving, glass etc. Specially used for forming and grinding spherical bead.
• Size:Head Diameter : 16mm; Shank Diameter : 6mm; Total Length : 50mm
• Easy to Use: Can be used on bench drills, hand drills (not included here). The recommended speed is 2000-3000 rpm/min, for general purpose grinding in wide ranges of applications.
• Application：If you want to end up with a 14mm bead , choose a 16mm coarse diamond burr and a 14mm fine diamond bur