8 in x 1/2 in Diamond Ripple Faceting Lap for Gemstone Faceting & Precision Polishing

The 8 in x 1/2 in Diamond Ripple Faceting Lap is an advanced textured faceting and pre-polishing lap engineered for precision gemstone cutting. Featuring an undulating ripple diamond matrix, it actively promotes fluid coolant circulation, accelerates slurry evacuation, and significantly reduces surface tension during wet grinding. Crafted on a rigid, precision-machined steel backing plate, it ensures exceptional flatness, true running, and vibration-free facet placement on standard 8-inch faceting machines.

Key Features

• Wave-Patterned Ripple Texture: Micro-textured undulating diamond ridges continuously sweep away rock swarf and spent diamond sludge, preventing wheel loading and maintaining high-speed cutting efficiency.
• Reduced Surface Tension & Drag: Minimizes hydroplaning and workpiece drag, providing superior tactile feedback for precise meet-point control and razor-sharp facet junctions.
• Precision Steel Master Plate: Rigid, balanced steel core eliminates deflection and dish out under facet pressure, ensuring strictly planar facets.
• High-Concentration Electroplated Diamond: Industrial-grade monocrystalline diamond coating ensures aggressive stock removal and prolonged working lifespan.
• Wide Progressive Grit Range: Available from coarse 60 grit for rapid pre-forming down to ultra-fine 3000 grit for scratch-free pre-polish luster.
• Universal 1/2" Arbor: Precision center bore engineered for standard 8" faceting machines, lapidary flat laps, and cabochon machines.

Applications

• Gemstone Faceting: Cutting pavilion facets, crown facets, table leveling, and meet-point alignment on quartz, beryl, garnet, tourmaline, topaz, and sapphire.
• Pre-Polishing & Lapping: Smoothing and preparing facet surfaces for final cerium oxide, aluminum oxide, or diamond compound polish.
• Precision Lapidary & Mineral Work: Small flat grinding, cabochon back flattening, and crystal specimen preparation.

Technical Specifications

• Diameter: 8 inches (203 mm)
• Arbor Hole: 1/2 inch (12.7 mm)
• Abrasive Material: Premium Industrial Diamond
• Bond Type: Precision Electroplated Bond
• Surface Profile: Textured Ripple Surface
• Base Material: Precision Ground Steel Plate
• Available Grits: 60, 80, 120, 180, 220, 280, 360, 600, 1200, 3000
• Recommended Operating Speed: 350–1200 RPM

Operating Guidelines

• Always operate with adequate water drip or coolant to prevent heat buildup and maintain slurry expulsion.
• Apply light, consistent hand pressure; let the diamond texture cut naturally to avoid premature lap wear.
• Rinse and thoroughly dry the lap after each grinding session to maintain surface cleanliness and prevent oxidation.