8" x 1.5" 100 Grit Diamond Hard Flat Grinding Wheel for Hard Materials

The 8" x 1.5" 100 Grit Diamond Hard Flat Grinding Wheel features a heavy-duty, seamless solid steel core and a precision electroplated diamond rim. Ideal for general-purpose coarse grinding, cabochon outline profiling, and initial facet flattening on materials including gemstones, rocks, glass, ceramics, and porcelain. Provides true concentric rotation and vibration-free grinding on standard 8" cabbing machines.

Key Features

• Solid Seamless Steel Core: Heavy-duty steel body ensures true-running concentricity and eliminates wheel vibration.
• Precision Electroplated Diamond Rim: Uniform 100-grit diamond plating delivers balanced, aggressive stock removal with clean edge retention.
• True Flat Profile: Perfectly flat grinding face prevents dishing or crowning during shaping and faceting pre-forming.
• Universal 1" Arbor: Standard 1-inch inner bore fits standard lapidary cabbing machines (compatible with 3/4", 5/8", and 1/2" reducer bushings).

Applications

• Lapidary & Gemstones: General cabochon pre-forming, dome shaping, and roughing of agate, jasper, quartz, jade, and petrified wood.
• Glass Cold Working: Medium-coarse edge grinding, bevel pre-forming, and dimensioning on thick art glass and plate glass.
• Ceramic & Porcelain: Dimensional shaping, edge contouring, and stock reduction on technical ceramics and mineral specimens.

Technical Specifications

• Diameter: 8 inches (200 mm)
• Width: 1.5 inches (38 mm)
• Grit: 100 Grit (Medium-Coarse Grinding / Cabochon Shaping)
• Bond Type: Electroplated Diamond
• Core Material: Solid Steel
• Arbor Size: 1 inch (compatible with reducer bushings)
• Recommended Operating Speed: 1400–1800 RPM

Operating Guidelines

• Continuous Water Coolant Required: Always operate with adequate water flow to flush grinding swarf and keep diamond particles cool.
• Apply light, consistent workpiece pressure across the wheel face to prevent localized grooving.