Diamond Spherical Grinding Wheels

Diamond Spherical Grinding Wheels – Radius & Curved Surface Grinding for Glass, Crystal & Stone

Our Diamond Radius Spherical Surface Grinding Wheels are precision-engineered for shaping spherical surfaces, radius edges, and intricate curves on glass, crystal, optical lenses, and stone. Built on a seamless steel rim for vibration-free operation, these lightweight wheels provide excellent visibility at the contact point for freehand carving and sculpting work. Available in 6" and 8" diameters with a full grit range from 60 through 600, and featuring a universal 1" arbor with included bushings for 1/2", 5/8", and 3/4" shaft compatibility.

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Available Sizes & Grits

Diameter Width Available Grits Price
6" 1.5" 60, 80, 100, 180, 200, 220, 280, 360, 600 $65.00
8" 1.5" 60, 80, 100, 180, 200, 220, 280, 360, 600 $85.00

Key Features

  • Seamless steel rim — Vibration-free operation for smooth, consistent grinding
  • Lightweight design — Clear visibility at the contact point for freehand work
  • Universal 1" arbor — Includes bushings for 1/2", 5/8", and 3/4" shaft compatibility
  • Full grit range — 60 grit coarse shaping through 600 grit fine finishing
  • Durable diamond abrasive — Consistent cutting performance throughout wheel life

Applications

  • Removing punty marks from blown glass
  • Sculpting optical lenses and glass blanks
  • Carving detailed textures for glassblowers and lampworkers
  • Shaping spherical stone surfaces and stone balls
  • Radius edge grinding on glass and crystal art pieces

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Frequently Asked Questions

  • Q: What is a spherical grinding wheel used for?
    A: Diamond spherical grinding wheels are used for shaping and finishing spherical surfaces, radius edges, and curved profiles on glass, crystal, optical lenses, and stone. The rounded rim profile maintains full contact with curved surfaces, delivering even, consistent grinding that flat wheels cannot achieve on spherical workpieces.
  • Q: What shaft sizes are these wheels compatible with?
    A: All wheels feature a 1" arbor bore and include reducing bushings for 1/2", 5/8", and 3/4" shafts — making them compatible with most standard lapidary bench grinders and glass grinding machines without additional adapters.
  • Q: Should diamond spherical wheels be used wet or dry?
    A: Always use wet. Run water over the wheel during grinding to cool the diamond surface, prevent heat damage to glass and stone, and suppress dust. The seamless steel rim handles wet conditions well throughout the wheel’s working life.
  • Q: What grit should I start with for shaping a glass sphere?
    A: Start with 60–80 grit for rapid material removal and initial shaping. Progress through 180–280 grit for smoothing, then 360–600 grit for fine surface preparation before moving to polishing compounds on a felt or leather lap.