The Diamond Hollow Cup Bur is a specialized grinding tool engineered for rapid material removal, hollowing, and shaping applications on hard surfaces such as gemstones, glass, ceramics, and metals. Featuring a concave design with electroplated diamond particles, this bur delivers aggressive cutting power while maintaining precision, making it indispensable for lapidary artists, jewelers, and industrial craftsmen.
Key Features:
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High-Efficiency Design: The hollow cup shape allows for deep grinding and contouring, ideal for carving cavities or refining curved surfaces in materials like glass and stainless steel.
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Durable Construction: Reinforced with a premium diamond abrasive bonded to a hardened steel core, ensuring longevity even under heavy use.
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Versatile Compatibility: Compatible with standard grinders, rotary tools, and bench grinders, offering flexibility across workflows.
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Multi-Grit Options: Available in coarse to fine grits for rough shaping or finishing delicate surfaces like opal or turquoise.
Ideal For:
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Hollowing out gemstone cores or creating intricate undercuts in cabochon production.
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Smoothing rough edges on diamond saw blades or grinding wheels.
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Pairing with flexible diamond discs or resin-bonded belts for multi-stage polishing.
Technical Specifications:
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Shank Size: 3mm or 6mm (fits most rotary tools and arbor adapters).
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Grit Range: 80–1200 mesh for versatility in material processing.
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Coating: Electroplated diamond layers for consistent performance.
Additional Resources:
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Enhance results with diamond compound paste for a flawless finish.
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Explore complementary tools like Diamond Nova Points or metal backing plates for stability during heavy grinding.