16 in Diamond Flat Lap Disc with Magnetic Backing for Precision Grinding & Polishing

Overview

The 16 in Diamond Flat Lap Disc with Magnetic Backing is an extra-large, commercial-grade electroplated diamond grinding disc designed for 16-inch lapidary flat laps, large-format cold glass grinding units, and precision stone faceting equipment. Featuring a full-face electroplated diamond matrix bonded to a heavy-duty, flat-ground disc plate with a magnetic or PSA backing system, this flat lap allows instantaneous disc replacement, exceptional rigidity, and perfectly uniform surface leveling across broad glass slabs, ceramics, gemstones, and hard minerals.

Key Features

• Full-Face Diamond Surface: High-concentration, electroplated diamond abrasive ensures consistent cutting power and uniform stock removal across the extensive 16-inch surface.
• Magnetic & PSA Backing: Designed for rapid magnetic mounting onto steel master laps or adhesive installation on backing plates, cutting downtime during multi-grit finishing sequences.
• Heavy-Duty Ground Plate: Precision-flattened disc base resists warping and deflection under grinding pressure, guaranteeing flat facets, crisp miters, and accurate bevels.
• Comprehensive Grit Selection (45 to 600 Grit): Covers aggressive material hogging, rough shaping, surface leveling, and pre-polish finishing.
• Wet Grinding Durability: Engineered for continuous water-cooled operation to prevent thermal stress, prolong tool life, and eliminate airborne dust.

Applications

• Large gemstone rough shaping, cabochon grinding, and facet pre-polishing
• Architectural art glass beveling, cold glass sculptural finishing, and broad plate edge smoothing
• Flattening large ceramic, porcelain, and pottery bases
• Surfacing oversized mineral specimens, agate geodes, quartz slabs, and petrified wood

Technical Specifications

• Disc Diameter: 16 inches (400 mm)
• Abrasive Type: Precision Electroplated Diamond
• Backing System: Magnetic Backing / Pressure Sensitive Adhesive (PSA)
• Available Grits: 45, 60, 80, 100, 140, 200, 270, 325, 600 Grit
• Machine Compatibility: 16-inch flat lap machines (Hi-Tech Diamond, Covington Engineering, Inland, Lortone, and Hans flat laps)

Operating Guidelines

• Always operate with adequate water coolant to lubricate the contact zone and flush away debris.
• Apply even, moderate hand pressure across the broad surface; allow diamond points to grind freely without forcing the workpiece.
• Rinse the disc and master plate thoroughly between grit stages to prevent abrasive contamination.
• Store flat in a dry environment when not in use to preserve magnetic backing integrity.