Diamond Concave Burs are engineered for high-speed, ultra-precise cutting, carving, and pre-forming on hard and soft materials like glass, stone, ceramics, bone, and metals. Featuring a concave diamond-coated tip, these burs deliver smooth, controlled material removal for intricate detailing and industrial workflows.
Key Features
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Concave Diamond Tip: Ideal for carving curves, hollows, and complex contours with sub-millimeter precision.
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Galvanically Bonded Grit: Diamond-coated edges ensure rapid cutting and extended durability.
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3/32" Shank Compatibility: Fits Foredom® tools, Dremel® rotary tools, and any flex shaft handpiece.
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Versatile Material Use: Effective on Mohs 3–10 substrates.
Applications
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Lapidary & Gem Carving: Shape gemstones or pre-form cabochons.
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Glass & Ceramics: Carve decorative patterns or smooth edges on stained glass.
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Bone & Metalwork: Detail bone artifacts or deburr metal alloys.
Technical Specifications
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Shank Diameter: 3/32" (2.35mm).
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Grit Options: 80# (coarse) to 400# (fine).
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Max RPM: 15,000 (use with coolant for heat-sensitive materials).
Why Choose These Burs?
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Precision Control: Concave geometry enables access to tight spaces and curved surfaces.
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Efficiency: Cuts faster than silicon carbide or aluminum oxide abrasives.
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Durability: Diamond coating resists wear in aggressive workflows.
Usage Tips
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Cooling: Use water or lubricant to prevent overheating.
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Speed: Start at low RPM and adjust based on material hardness.
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Pressure: Apply gentle force to avoid premature grit wear.