8" x 2" 80 Grit Diamond Plastic Hub Textured Grinding Wheel for Lapidary & Glass

The 8" x 2" 80 Grit Diamond Plastic Hub Textured Grinding Wheel is an extra-wide, aggressive rough shaping wheel engineered for standard 8-inch vertical cabbing units and heavy-duty lapidary bench grinders. Built on a vibration-absorbing molded plastic hub electroplated with coarse 80-grit monocrystalline diamonds in a cross-hatch textured grid, this wheel provides rapid stock removal and fast profile roughing across agate, jasper, quartz, jade, ceramic, and art glass while eliminating hydrodynamic hydroplaning and stone drag.

Key Features

• Cross-Hatch Textured Diamond Pattern: Interrupted surface grid facilitates continuous water coolant flow directly under the contact patch, flushing away heavy swarf instantly and preventing diamond glazing.
• Aggressive 80-Grit Diamond Electroplating: High-density monocrystalline diamond distribution rapidly removes rind, slabs edges, and rough-shapes large gemstone preforms.
• Extra-Wide 2" Grinding Face: Offers 33% more surface area than standard 1-1/2" wheels, accommodating larger stones, glass vessels, and accelerating workpiece leveling.
• Vibration-Damping Plastic Hub: Precision-molded plastic core absorbs rotational resonance, ensuring smooth, chatter-free operation at 1400–1800 RPM.
• Reduced Workpiece Drag & Heat: The textured channels eliminate stone suction and hydroplaning, keeping delicate glass and gemstones cool during continuous heavy grinding.
• Standard 1" Arbor with Reducer Bushings: Bored to 1" and supplied with precision bushing spacers to adapt seamlessly to 3/4", 5/8", and 1/2" machine arbors.

Applications

• Gemstone Pre-Forming & Cabbing: Rapid rough shaping of large cabochons, slab trimming, and removing thick rind on agate, jasper, and quartz.
• Glass Cold Working & Edge Profiling: Fast stock removal, rough beveling, and thickness calibration on thick glass plates and art glass.
• Ceramic & Mineral Shaping: Heavy grinding and surface leveling on specimen bases and technical ceramics.

Technical Specifications

• Diameter: 8 inches (200 mm)
• Width: 2 inches (50 mm)
• Grit: 80 Grit (Coarse Roughing / Rapid Stock Removal)
• Core Material: High-Impact Molded Plastic Hub
• Pattern: Cross-Hatch Textured / Interrupted Grid
• 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 adequate continuous water coolant to keep the diamond cool and flush grinding swarf out of the textured channels.
• Apply light to moderate hand pressure; allow the aggressive textured diamond grid to cut without forcing the workpiece.
• Avoid concentrated grinding directly on sharp 90-degree corners to protect the electroplated edge rim.