Diamond Resin Soft Grinding Wheels

Professional Nova flexible resin bond diamond soft grinding wheels for lapidary bench grinders and cabbing machines. The flexible resin bond conforms slightly to curved stone surfaces during grinding, reducing chipping and producing smooth, flat-spot-free results on cabochon domes compared to rigid hard wheels. Available in 6"×1-1/2", 8"×1-1/2", and 8"×2" sizes across a full grit range from 60 to 50,000, including economical 4-grit and 6-grit sets for complete workflow setups. Fits standard 1" arbors with bushings available for 3/4" and 5/8" shafts. Always use with continuous water coolant.

Available Sizes & Pricing

Size Arbor Grit Range Individual Price Set Options
6" × 1-1/2" 1" 60 – 50,000 $60.00 4-grit set $200 / 6-grit set $320
8" × 1-1/2" 1" 60 – 50,000 $70.00 4-grit set $265 / 6-grit set $455
8" × 2" 1" 60 – 50,000 $80.00 4-grit set $320 / 6-grit set $525

Grit Selection Guide

Grit Stage Grit Rating Purpose
Coarse Shaping 60 – 140 Initial scratch removal, dome contouring, fast stock removal
Medium Smoothing 280 – 600 Smoothing grind marks, eliminating flats, shaping cabochon curvature
Pre-Polish 1,200 – 3,000 Semi-gloss finish, scratch-free surface preparation
Fine Pre-Polish 8,000 – 14,000 High-luster preparation before final polishing
Final Mirror Polish 50,000 Optical mirror gloss on agate, jasper, quartz, and hard stones

Compatible Machines & Mounting

  • Cabbing machines: CabKing, Covington, Genie, Titan, Highland Park, and custom lapidary arbors
  • Standard 1" bore fits directly; bushing adapters enable mounting on 3/4", 5/8", and 1/2" shafts
  • Continuous water drip or mist lubrication required to preserve resin bond matrix

Related Tools

Frequently Asked Questions

  • Q: Why use resin soft wheels instead of hard diamond wheels for cabochons?
    A: Hard diamond wheels have rigid steel rims that can produce flat facets on curved cabochon domes. Resin soft wheels have a resilient polymer backing and flexible bond that conforms subtly to the stone's curvature, eliminating flat spots and producing smooth, even convex surfaces with minimal subsurface microfracturing.
  • Q: Do these wheels require water during operation?
    A: Yes, continuous water lubrication is mandatory. Running resin-bond diamond wheels dry will generate excessive friction, burning the resin matrix, stripping diamond particles, and permanently destroying the wheel.
  • Q: Can these wheels be mounted on 5/8" or 3/4" arbors?
    A: Yes. All wheels feature a standard 1" precision center bore and can be adapted to 3/4", 5/8", or 1/2" machine shafts using standard telescoping bushing reducers and arbor spacers.