6"x1/2" Plastic Master Lap – Precision Base for Lapidary Polishing and Calibration

Description
The Plastic Master Lap is an essential accessory for lapidary professionals and hobbyists. Designed as an uncharged, precision-ground base lap, it provides a perfectly flat and parallel surface to support Ultralaps, steel diamond Topper Laps, and polishing films. With a standard 1/2" arbor hole and approximately 1/4" thickness, it mounts easily to most lapidary machines.

Application
Its smooth, non-abrasive surface makes it ideal for calibration or as a backing plate for adhesive-backed diamond polishing pads. Whether working on gemstones, glass, or ceramics, users can achieve professional-grade finishes with consistent accuracy. The lap ensures even pressure distribution—critical for fine detailing and delicate finishing tasks.

Key Features
Built from rigid, durable plastic, this master lap is warp-resistant and maintains dimensional stability during prolonged use. Its adhesive-ready surface is compatible with PSA-backed accessories, while the precision flatness ensures reliable performance across all applications. Lightweight yet stable during operation, it minimizes vibration and enhances control during both grinding and polishing. Engineered for versatility and long-term reliability, the Plastic Master Lap is an indispensable component in any lapidary workshop.