Diamond Carving Burs

Diamond Carving Burs – Resin & Sintered Diamond Burs for Stone, Glass & Gem Carving

Professional diamond carving burs in resin bond and sintered bond for stone carving, glass engraving, gem drilling, and lapidary detail work. Available in a comprehensive range of tip shapes — including cylinder, round end, ball, bullet, flame, cone, tapered, mushroom, concave bead, drum, and inverted trapezoid — with 2.35mm, 3mm, and 6mm shank sizes and grits from 30 to 1200 for coarse shaping through fine detail finishing on hard stone, glass, ceramic, and gem materials.

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Available Tip Shapes

Shape Best Application Shank
Flat End Cylinder Flat-bottom channels, inlay work, flat surface grinding 3mm / 6mm
Round End Cylinder General carving, curved channels, surface shaping 3mm / 6mm
Round Ball Concave carving, bead setting, rounded relief work 3mm / 6mm
Bullet / Tapered V-grooves, pointed detail, engraving lines 3mm / 6mm
Flame / Cone Fine detail carving, pointed relief, gem seat cutting 3mm / 6mm
Concave Bead Bead shaping, curved surface finishing 6mm
Mushroom Head Large surface smoothing, flat area finishing 6mm
Hollow Cup Cabochon grinding, curved surface shaping 3mm / 6mm
Drum / Pearl Bead making, rounded surface carving 3mm

Key Features

  • Resin bond burs — economical, good for general carving and softer stone materials
  • Sintered bond burs — 5–10x longer life than resin bond, ideal for hard stone and professional use
  • Shank sizes: 2.35mm (Dremel-compatible), 3mm, and 6mm for broad tool compatibility
  • Grit range: 30–1200 for coarse shaping through fine detail finishing
  • Available as single burs, 5-piece sets, 10-piece sets, and 100-piece bulk packs

Related Tools

Frequently Asked Questions

  • Q: What is the difference between resin bond and sintered diamond burs?
    A: Resin bond burs have diamond particles bonded in a resin matrix — economical and good for general carving on softer materials. Sintered burs have diamond throughout the entire bur body, lasting 5–10 times longer on hard stone and glass, making them more cost-effective for professional and high-volume carving work.
  • Q: Should diamond carving burs be used wet?
    A: Yes — wet use with water is strongly recommended. Water cools the bur and workpiece, prevents overheating, reduces stone dust, and significantly extends bur life during stone and glass carving.
  • Q: What rotary tools are compatible with these burs?
    A: 2.35mm shank burs fit Dremel and similar hobby rotary tools. 3mm shank burs fit Foredom flex shaft machines and most professional rotary tools. 6mm shank burs fit standard die grinders and larger professional rotary tools. Always verify shank size and collet compatibility before use.