6" x 1-1/2" 220 Grit Diamond Plastic Hub Textured Grinding Wheel for Lapidary & Glass

The 6" x 1-1/2" 220 Grit Diamond Plastic Hub Textured Grinding Wheel is a fine-grit shaping and pre-polishing wheel engineered for standard 6-inch vertical cabbing units and bench grinding machines. Built on a lightweight, vibration-absorbing molded plastic hub electroplated with high-grade 220-grit monocrystalline diamonds in a cross-hatch textured grid, this wheel provides exceptional surface smoothing while preventing hydrodynamic hydroplaning and workpiece drag across agate, jasper, quartz, jade, ceramic, and art glass.

Key Features

• Cross-Hatch Textured Diamond Pattern: Interrupted surface channels promote continuous water flow across the grinding face, flushing away swarf instantly and preventing diamond glazing.
• Fine 220-Grit Diamond Electroplating: Uniform diamond plating removes intermediate scratches, establishing a smooth foundation before moving to resin-bond smoothing wheels.
• 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 pattern eliminates stone suction and hydroplaning, keeping delicate glass and gemstones cool during continuous 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-Polishing & Cabbing: Final electroplated stage for cabochons, refining dome curvatures, and smoothing edges on agate, jasper, quartz, and jade.
• Glass Cold Working & Bevel Finishing: Refining beveled edges, smoothing saw cuts, and removing fine edge chips on art glass.
• Ceramic & Mineral Smoothing: Precision fine shaping and surface smoothing on specimen bases and technical ceramics.

Technical Specifications

• Diameter: 6 inches (150 mm)
• Width: 1-1/2 inches (38 mm)
• Grit: 220 Grit (Fine Shaping / Pre-Polishing)
• 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.