6" x 1.5" 280 Grit Diamond Hard Flat Grinding Wheel for Hard Materials

The 6" x 1.5" 280 Grit Diamond Hard Flat Grinding Wheel is manufactured with a seamless solid steel core and a high-precision electroplated diamond rim. Specially designed for smooth fine shaping, pre-polishing scratch elimination, and refined contouring on hard materials such as gemstones, rocks, glass, ceramics, and porcelain. Delivers true concentric rotation and vibration-free grinding on standard lapidary machines.

Key Features

• Solid Seamless Steel Core: Heavy-duty steel body ensures true-running concentricity and eliminates wheel vibration.
• Precision Electroplated Diamond Rim: Uniform 280-grit diamond plating bridges the gap between coarse roughing and resin fine polishing.
• 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: Fine pre-polishing and scratch removal on agate, jasper, quartz, jade, and petrified wood cabochons.
• Glass Cold Working: Fine edge smoothing, seaming, and scratch blending on decorative glass and optical components.
• Ceramic & Porcelain: Precision smoothing and surface refining of technical ceramics and mineral specimens.

Technical Specifications

• Diameter: 6 inches (150 mm)
• Width: 1.5 inches (38 mm)
• Grit: 280 Grit (Fine Grinding / Pre-Polishing Smoothing)
• Bond Type: Electroplated Diamond
• Core Material: Solid Steel
• Arbor Size: 1 inch (compatible with reducer bushings)
• Recommended Operating Speed: 1725–1800 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.