8" x 2" 100 Grit Sintered Diamond Grinding Wheel – Metal Bonded for Gemstone & Glass Grinding

The 8" x 2" 100 Grit Sintered Diamond Grinding Wheel (Metal Bonded) is a professional-grade, long-lasting lapidary grinding wheel engineered for aggressive coarse stock removal, rapid slab trimming, and heavy profile establishment on gemstone cabochons, glass cold work, and technical ceramics. Unlike standard electroplated wheels with a single abrasive layer, this wheel features a full 5mm deep solid metal-bonded diamond matrix. As the wheel wears during use, fresh diamond crystals are continuously exposed, delivering consistent cutting performance and extraordinary working life across demanding shop environments.

Key Features

• 5mm Deep Solid Sintered Matrix: Fully impregnated metal-diamond rim provides years of dependable service and far outlasts electroplated alternatives.
• Self-Sharpening Cutting Action: Continuous exposure of fresh diamond points ensures smooth, uniform stock removal with minimal chipping.
• Solid Balanced Core: Heavy-duty core provides true concentric rotation and vibration-free grinding at standard cabbing speeds.
• Wide 2" Grinding Face: Broad profile accommodates larger slabs, wide cabochons, and extensive architectural glass projects.
• Full Lifespan Dressability: Easily redressed using an aluminum oxide or silicon carbide dressing stick to unmask fresh cutting points whenever necessary.
• Universal 1" Arbor Bore: Standard 1-inch inner bore supplied with reducer bushings to fit 3/4", 5/8", and 1/2" machine shafts.

Applications

• Lapidary & Gemstone Cabbing: Fast material removal, initial cabochon roughing, and heavy profiling on agate, jasper, quartz, jade, and sapphire.
• Glass Cold Working: Rapid edge grinding, gross bevel dimensioning, and cold working on art glass and optical components.
• Ceramic & Hard Materials: Clean shaping and dimensional profiling of dense technical ceramics, porcelain, and mineral specimens.

Technical Specifications

• Diameter: 8 inches (200 mm)
• Width: 2 inches (50 mm)
• Diamond Rim Depth: 5 mm
• Grit: 100 Grit (Aggressive Coarse Grinding / Roughing)
• Bond Type: Sintered Metal Bond
• Abrasive Material: Industrial Diamond
• Arbor Size: 1 inch (includes 3/4", 5/8", 1/2" reducer bushings)
• Recommended Operating Speed: 1400–1800 RPM

Operating Guidelines

• Continuous Wet Coolant Required: Always operate with adequate water flow to flush grinding slurry and maintain cool cutting temperatures.
• Apply light, steady workpiece pressure; allowing the diamond abrasive to cut freely prevents rim grooving.
• Traverse workpieces evenly across the wheel width to promote flat, concentric wear across the matrix face.
• Dress periodically with a dressing stick when cutting rate slows or after extensive processing of softer stones.