8" x 1-1/2" 600 Grit Sintered Diamond Grinding Wheel (Metal Bonded)

The 8" x 1-1/2" 600 Grit Sintered Diamond Grinding Wheel (Metal Bonded) is an ultra-fine lapidary pre-polishing wheel engineered for 8-inch vertical cabbing units and precision glass processing machinery. Featuring a continuous 5mm solid sintered diamond rim bonded in a resilient bronze matrix, this wheel provides critical pre-polish refinement. It effortlessly eliminates sub-surface micro-fractures and fine grinding traces, leaving an exceptionally smooth, uniform semi-gloss ground finish on chalcedony, agate, jasper, quartz, jade, and artistic glass.

Key Features

• Continuous 5mm Solid Sintered Matrix: Fully impregnated with ultra-fine 600-grit monocrystalline diamonds throughout the entire 5mm bronze rim, ensuring multi-year durability without risk of delamination.
• Ultra-Fine Pre-Polish Finish: Seamlessly transitions stones from intermediate grinding to final polishing, creating a high-uniformity satin base that reduces oxide polishing compound work.
• Self-Sharpening Cutting Action: Microscopic matrix erosion continually exposes sharp diamond points during wet operation, preventing face burnishing.
• Precision-Balanced Steel Core: Turned core delivers whisper-quiet, vibration-free rotation at 1400–1800 RPM, protecting cabbing machine spindle bearings.
• Standard 1" Arbor with Reducer Bushings: Includes precision reducing bushings to adapt 1" arbors to 3/4", 5/8", and 1/2" shaft sizes.

Applications

• Ultra-Fine Gemstone Pre-Polishing: Pre-polishing cabochon domes and smoothing edges on agate, jasper, tourmaline, petrified wood, and jade.
• Precision Glass Finishing: Refining cold-worked bevels, miters, and artistic glass edges without micro-chipping.
• Mineral Specimen Face Refinement: Imparting a scratch-free satin finish to slab faces, geodes, and display crystals prior to final felt/leather buffing.

Technical Specifications

• Diameter: 8 inches (200 mm)
• Width: 1-1/2 inches (38 mm)
• Grit: 600 Grit (Ultra-Fine Pre-Polish)
• Diamond Layer Depth: 5 mm
• Arbor Size: 1 inch (includes 3/4", 5/8", 1/2" reducer bushings)
• Bond Type: Sintered Metal (Bronze Matrix)
• Recommended Operating Speed: 1400–1800 RPM

Operating Guidelines

• Always operate with continuous, generous water cooling across the wheel face to prevent friction overheating and flush slurry.
• Apply light, gentle contact pressure; letting the diamond cut naturally produces the cleanest finish and extends tool lifespan.
• If rock swarf causes glaze or reduction in cutting bite, dress lightly with an aluminum oxide dressing stick under water lubrication.