Diamond Grinding Tools – Resin, Metal, Hybrid, Flat Lap & Carving Wheels

Professional diamond grinding tools for lapidary, stone, glass, and metal applications. From resin and metal bond wheels to flat lap discs, magnetic quick change systems, and carving wheels — covering every stage from rough grinding to fine pre-polish finishing.

Related Tools

• Diamond Saw Blades — cut rough stone into slabs before grinding
• Diamond Sanding Belts — intermediate sanding between grinding and polishing stages
• Diamond Smoothing Pads — precision scratch-free pre-polishing on flat lap machines
• Flexible Diamond Sanding Pads — adapts to flat and irregular surfaces for wet polishing
• Diamond Polishing Compounds — final mirror finish after grinding
• Magnetic Quick-Change Systems — instant tool-free disc swapping between grit stages
• Expandable Drum Wheels — rubber drums for sanding belt mounting on lapidary grinders
• Lapidary Machines — cabbing machines and bench grinders to pair with these wheels
• Machine Accessories & Parts — arbor adapters, spacers, and bench wheel bushings

Frequently Asked Questions

• Q: What types of diamond grinding wheels are available for lapidary?
  A: We offer resin bond (Nova/REZ soft wheels), metal bond, sintered, hybrid, flat hard, spherical, concave, convex, and textured wheels — covering every stage from rough shaping to fine pre-polish finishing on lapidary bench grinders.
• Q: What is the difference between resin bond and sintered diamond grinding wheels?
  A: Resin bond wheels (Nova/REZ) have a flexible bond that produces a smoother finish and is ideal for cabochon shaping and pre-polishing. Sintered metal bond wheels are harder and more aggressive — best for heavy material removal on tough stones like granite, quartz, and hard minerals.
• Q: What grit sequence should I use for cabochon grinding on a lapidary bench grinder?
  A: Start with 60–80 grit for rough shaping, move to 220–600 grit for smoothing, then 1200–3000 grit for pre-polish. Finish on a flat lap or polishing pad with 14000+ grit or diamond compound for mirror gloss.
• Q: What are flat lap discs used for in lapidary?
  A: Flat lap discs are used on flat lap machines for grinding flat faces on cabochons, faceting pre-forms, and polishing flat stone surfaces. Metal bond discs (60–120 grit) handle initial grinding; resin bond discs (600–3000 grit) handle pre-polishing.
• Q: How does a magnetic quick-change disc system work?
  A: A magnetic master lap plate mounts on your flat lap machine spindle. Diamond discs and polishing pads with magnetic backing snap on and off instantly without tools — ideal for faceting and cabbing workflows where you frequently change grit stages.
• Q: Can I use diamond grinding wheels on glass?
  A: Yes — resin bond and Nova soft wheels work well for glass edge grinding and shaping. Use with water cooling and start at a medium grit (220–600) to avoid chipping. Diamond grinder head bits are the preferred tool for stained glass grinders.
• Q: What is a spherical grinding wheel used for?
  A: Diamond spherical radius wheels have a curved face profile that produces consistent dome shapes on cabochons. They are the preferred wheel for cabochon dome shaping on lapidary bench grinders, replacing the need for multiple flat wheel passes.