8" x 1-1/2" 280 Grit Diamond Resin Grinding Wheel – REZ Premium Soft Wheel for Lapidary Polishing & Glass Grinding

The 8" x 1-1/2" 280 Grit Diamond Resin Grinding Wheel (REZ Premium Soft Wheel) is precision-engineered for fine scratch smoothing, pre-polishing surface refinement, and seamless contour blending on lapidary cabochons, glass cold working, and mineral specimens. Built with a high-density monocrystalline diamond matrix embedded in an advanced thermo-setting resin layer over an impact-absorbing closed-cell foam cushion, this versatile soft wheel conforms smoothly to curved contours, eliminating flat spots and harsh edge facets.

Key Features

• Closed-Cell Flexible Foam Cushion: Resilient cushion layer conforms naturally to convex cabochon domes and curved workpieces, preventing chatter marks and facet flats.
• Fine 280-Grit Diamond Formulation: Rapidly erases scratches left by coarser 140/180-grit wheels, creating a smooth satin foundation ready for pre-polish and polish steps.
• Heavy-Duty Precision Plastic Hub: True-running, corrosion-proof composite hub guarantees balanced rotation and eliminates vibration at standard cabbing speeds.
• Standard 1-1/2" Working Surface: Popular 1-1/2" face width fits standard 8-inch cabbing machine arbor configurations and multi-wheel shaft setups.
• Superior Wet Grinding Life: Designed for continuous water coolant operation to maintain cool cutting, flush swarf, and prevent resin glazing.
• Standard 1" Arbor with Reducer Bushings: Precision 1-inch bore supplied with reducer bushings to fit 3/4", 5/8", and 1/2" cabbing machine shafts.

Applications

• Lapidary Cabochon Smoothing & Cabbing: Fine surface smoothing and dome refinement on agate, jasper, chalcedony, quartz, jade, and petrified wood.
• Glass Cold Working & Beveling: Edge rounding, rim smoothing, and contour blending on art glass and sculptural glasswork.
• Specimen Pre-Polishing: Pre-polishing face smoothing on cut slabs, fossils, and mineral specimens.

Technical Specifications

• Diameter: 8 inches (200 mm)
• Width: 1-1/2 inches (38 mm)
• Grit: 280 Grit (Fine Smoothing & Pre-Polishing Preparation)
• Bond Type: Resin Bond with Flexible Closed-Cell Cushion
• Hub Material: Precision Injection-Molded Polymer Core
• Arbor Size: 1 inch (includes 3/4", 5/8", 1/2" reducer bushings)
• Recommended Operating Speed: 1400–1800 RPM

Operating Guidelines

• Always use continuous water lubrication to flush ground slurry and keep the diamond-resin matrix cool.
• Apply light to moderate, uniform pressure across the wheel face; excessive force causes premature wheel wear without improving cutting speed.
• Keep workpieces moving continuously across the wheel to ensure even surface wear and maintain concentric wheel balance.