6" x 1-1/2" 1200 Grit Lapidary Diamond Hard Flat Grinding Wheel

The 6" x 1-1/2" 1200 Grit Lapidary Diamond Hard Flat Grinding Wheel is an extra-fine hard pre-polishing wheel engineered for 6-inch vertical cabbing units and precision lapidary grinding setups. Manufactured with a seamless, solid turned steel core and electroplated with ultra-pure 1200-grit monocrystalline diamonds, this hard wheel delivers delicate, vibration-free surface refinement. It systematically eliminates microscopic sub-surface damage and scratches, imparting an ultra-smooth, uniform semi-gloss ground finish on chalcedony, agate, jasper, quartz, jade, ceramic, and art glass while preserving sharp corners and crisp flat planes.

Key Features

• Precision Steel Core Balance: Rigid steel construction prevents deflection and runout, providing whisper-quiet rotation at 1400–1800 RPM and protecting machine spindle bearings.
• High-Density Electroplated Diamond Coating: Fine 1200-grit diamond crystals are locked securely in a durable nickel matrix, providing smooth abrasion without diamond peeling.
• Ultra-Fine Pre-Polish Finish: Transitions stones directly into final oxide or diamond paste buffing, drastically cutting final polishing time.
• Strict Flat Profile: Retains true flatness across the full 1-1/2" width, perfect for grinding crisp edges, flats, and precise cabochon girdles.
• Standard 1" Arbor with Reducer Bushings: Includes precision bushings to adapt the 1" arbor to 3/4", 5/8", and 1/2" motor shafts.

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: 6 inches (150 mm)
• Width: 1-1/2 inches (38 mm)
• Grit: 1200 Grit (Extra-Fine Pre-Polish)
• Core Material: Solid Steel
• Bond Type: Electroplated Diamond
• Arbor Size: 1 inch (includes 3/4", 5/8", 1/2" reducer bushings)
• 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.
• Avoid concentrated corner point pressure to protect the rim edge diamonds.