3.0mm Bullet Shape Diamond Bur, 20pcs – 1200 Grit 2.35mm Shank Precision Carving Tool for Gemstone, Stone & Glass

Precision industrial 3.0mm Bullet Shape Diamond Burs (2.35mm Shank, 20-Piece Set) engineered for ultra-fine micro-carving, delicate contouring, detail relief engraving, and fine smoothing in hard lapidary materials, gemstones, glass, and ceramics. Coated with ultra-fine 1200-grit electroplated diamond abrasive securely bonded onto a 2.35mm (3/32") precision steel shank.

Key Specifications

• Head Diameter: 3.0 mm
• Head Shape: Bullet Shape (Pointed / Tapered Dome Head)
• Shank Diameter: 2.35 mm (3/32" standard rotary tool & micro motor fit)
• Grit: 1200# Ultra-Fine Grit (Pre-polish smoothing, ultra-fine detailing, delicate line carving)
• Bond / Abrasive: Electroplated / Industrial Diamond Matrix
• Quantity: 20 pieces per pack

Recommended Applications

• Ultra-fine micro-carving, facial detailing, and delicate line work in jade, agate, quartz, and gemstones
• Fine glass engraving, delicate stippling, and ceramic detail finishing
• Miniature sculpting, jewelry detailing, and pre-polish surface smoothing

Usage Guidelines

• Always operate with continuous water coolant or liquid lubrication to prevent overheating and ensure maximum service life.
• Recommended operational speeds: 10,000 – 30,000 RPM. Maintain gentle, featherlight pressure.