This concave cylinder-shaped diamond bur is specially designed for working on bracelets, rings, and other curved or rounded jewelry surfaces. Its unique concave profile allows for precise grinding and shaping of external curves, helping achieve smooth and uniform finishes on circular jewelry components.. They are ideal for shaping, smoothing, engraving, and polishing rings and other fine jewelry pieces.Whether you're a professional jeweler or a DIY enthusiast, this comprehensive set of diamond tools helps you achieve high-precision results in jewelry making and repair.

Key Applications

Rounding & Contouring: Perfect for shaping bracelet safety clasps (Safety Clasps) and ring bands (Jewelry Tools).
Surface Finishing: Achieve mirror-like polish on precious metals (Polishing Systems) and gemstones (Gemstones).
Detail Engraving: Precision grooves and patterns using diamond-coated wheels (Diamond Grinding Wheels).

Tool Specifications

Grooved Wheels (Small Pit Wheels):
- Design: Diamond-coated edges with micro-grooves for intricate contouring (Contouring Tools).
- Use: Ideal for refining safety clasps and ring interiors.
Grinding Heads:
- Shank Size: 2.35mm – Compatible with rotary tools (Rotary Tools).
- Function: Rapid material removal on stainless steel (Steel) and titanium alloys.
Polishing Wheels:
- Grit Range: 150# to 3000# for progressive smoothing (Polishing Accessories).

Industry Use Cases

Jewelry Manufacturing: Shape and polish bracelets (Bracelets), rings, and pendants.
Metal Artisans: Create intricate designs on hardwoods (Wood) and acrylics (Plastic).
Lapidary Work: Finish gemstone cabochons (Cabochons) and glass surfaces (Glasswork).

Usage Guidelines

Speed Control: Operate below 15,000 RPM to preserve diamond coatings.
Cooling: Apply water lubrication (Cooling Systems) to prevent overheating.
Safety: Wear protective gear (Safety Equipment) during high-speed grinding.

Why Choose These Tools?

Precision: Diamond abrasives ensure clean edges and flawless finishes.
Durability: Long-lasting performance on hardened steels (Hard Metals) and ceramics (Ceramic).
Versatility: Adaptable to engraving machines and handheld grinders (Grinding Tools).

Explore Complementary Products:

Diamond Core Drills: Drilling Solutions
Lapping Films: Surface Refinement
Flexible Abrasives: Contouring Discs

Note: For custom configurations or bulk orders, contact HANS Lapidary. Ideal for jewelers and artisans demanding industrial-grade precision in compact workflows.

Product Code	JBRC
Condition	New
Weight	0.05kg

Product Information