4mm Bullet Shape Cowhide Mounted Bur, 100pcs – 2.35mm Shank Polishing Tool for Gemstones, Glass & Jewelry

The 4mm Bullet Shape Cowhide Mounted Bur, 100pcs is a premium leather buffing rotary tool designed for final polishing, luster buffing, and mirror finishing on jade, gemstones, glass, porcelain, dental crafts, and jewelry metals. Crafted from compressed natural cowhide leather mounted on a 2.35mm rotary shank, this 100-piece pack pairs effectively with diamond paste or polishing compound to bring out a brilliant high-gloss shine without scratching.

• Head Diameter: 4mm
• Shape: Bullet (Pointed / Conical Bullet)
• Material / Bond: Premium compressed cowhide leather
• Shank Diameter: 2.35mm (3/32") standard rotary shank
• Quantity: 100-Pack (100 pieces)
• Applications: High-gloss buffing, mirror polishing, surface smoothing, and fine detailing on jade, agate, emerald, quartz, glass, precious metals, and ceramics

For best results, apply diamond polishing compound or cerium oxide slurry at low to medium rotary speeds.