Sintered Diamond Grinding Wheels

Sintered Diamond Grinding Wheels - Professional Metal-Bonded Wheels for Cabbing and Lapidary

Our Sintered Diamond Grinding Wheels are professional-grade metal-bonded diamond wheels engineered for vertical cabbing machines and lapidary bench grinders. Each wheel features a 5mm deep sintered diamond matrix that continuously exposes fresh cutting points as the surface wears - delivering consistent, high-performance grinding from first use through the full life of the wheel. Factory-balanced for smooth, quiet operation, with a universal 1" arbor and included bushings for 1/2", 5/8", and 3/4" shaft compatibility.

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Available Sizes, Grits and Pricing

Diameter Width Available Grits Price
6" 1.5" 60, 80, 100, 180, 220, 280, 360, 600 $260.00
8" 1.5" 60, 80, 100, 180, 220, 280, 360, 600 $365.00
8" 2" 60, 80, 100, 180, 220, 280, 360, 600 $460.00

Key Features

  • 5mm deep sintered diamond matrix - Continuously exposes fresh cutting points as the wheel wears for consistent performance throughout its life
  • Factory-balanced - Smooth, quiet, vibration-free operation on vertical cabbing machines and bench grinders
  • Universal 1" arbor - Includes bushings for 1/2", 5/8", and 3/4" shaft compatibility
  • Professional-grade durability - Significantly longer service life than electroplated wheels for high-volume lapidary use
  • Optimized for wet use - Best results with proper lubrication and a side-to-side grinding pattern

Grit Selection Guide

Grit Stage Application
60-80 Coarse grinding Rapid material removal, initial shaping on rough stone
100-180 Medium grinding Dome profiling, surface smoothing on cabochons
220-360 Medium-fine Scratch removal, surface refinement before pre-polish
600 Fine / pre-polish Final surface preparation before polishing wheel stages

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Frequently Asked Questions

  • Q: What makes sintered diamond wheels worth the higher price?
    A: Sintered wheels have a 5mm deep diamond matrix - as the surface wears, fresh diamonds are continuously exposed. This gives sintered wheels dramatically longer service life than electroplated wheels, which have only a single surface layer of diamonds. For professional lapidary artists and high-volume cabbing operations, sintered wheels deliver a significantly lower cost per stone over time.
  • Q: What is the recommended grinding technique for sintered wheels?
    A: Use a side-to-side grinding pattern rather than holding the stone in one spot. Moving the stone across the full width of the wheel distributes wear evenly across the wheel face, extending wheel life and maintaining a flat, true grinding surface. Always use with proper water lubrication running continuously.
  • Q: Should I choose the 1.5" or 2" wide wheel?
    A: The 1.5" wide wheel is the standard choice for most vertical cabbing machines and suits the majority of cabochon sizes. The 2" wide wheel provides a larger grinding surface for bigger stones and faster material removal on wide workpieces. Choose the 2" if you regularly work with large stones or want more grinding surface area per pass.
  • Q: How do sintered wheels compare to REZ soft resin wheels?
    A: Sintered wheels use a hard metal bond for rigid, flat grinding - ideal for initial shaping and aggressive stock removal on hard stones. REZ soft resin wheels use a flexible bond that conforms to curved surfaces - better for dome shaping and fine polishing on cabochon profiles. Many lapidary artists use sintered wheels for coarse grinding and REZ wheels for fine finishing and polishing stages.