Collection: Master Support Lap

Technical Overview — Master Support Lap & 1/4"-20 Screwback Support Lap

Overview —Master Support Lap & 1/4"-20 Screwback Master Support Lap

The Master Support Lap series—including both standard and 1/4”-20 Screwback versions—is a lightweight yet durable solution designed to stabilize diamond flat  laps and polishing discs. Crafted from a hybrid of aluminum and high-strength plastic, it provides a rigid backing that delivers excellent stability during precision work on gemstones, glass, metals, ceramics, and stone.

The 1/4"-20 Screwback Master Support Lap is a precision-ground, flat and parallel 6mm base plate designed to support thin laps such as Ultralaps, diamond-plated disks, felt pads, and leather pads for final buffing or polishing . It remains uncharged, allowing users to pair it with their preferred abrasives for cabbing, polishing, and shaping. Ideal for flat lap machines and cabbing systems.

Universal Compatibility

• Right-hand Thread (1/4”-20): Fits most cabbing  machines and flat lap systems. Thickness: 6mm (e.g., Crystal Master 6" & 8").
• Left-hand Thread (1/4”-20): Also compatible with common lapidary systems requiring LH rotation. Thickness: 6mm.

Precision Construction

• Precision Ground surfaces ensure flatness, stable mounting, and uniform pressure distribution.
• Ideal for securely holding thin laps used on gemstone cabochons, metal alloys, glass, and ceramics.

Applications — Lapidary, Glass, Gemstone, Stone, Polishing & Shaping

Applications — Lapidary,Glass, Gemstone, and Stone, Polishing & Shaping

• Back diamond disks for Polishing sapphire, agate, jade, quartz, and more.

• Pair with felt pads for final buffing.

• Pair with leather pads for mirror finishes.

Key Features & Benefits

Features

1. Dual-Size Compatibility
   • Supports 6-inch and 8-inch diamond discs, adapting to various polishing setups.
2. Lightweight Durability
   • Combines aluminum rigidity with impact-resistant plastic for reduced fatigue during long sessions.
3. Universal Application
   • Ideal for grinding and polishing tasks on stone, gemstones, and synthetic materials.

Benefits

• Versatility: Works seamlessly with diamond-coated discs for coarse grinding to final mirror finishing.
• Ergonomic Design: Lightweight build offers better control for beginners and professionals alike.
• Commercial-Grade Stability: Minimizes vibration and keeps discs firmly anchored during high-speed work.

Ideal For

• Gemstone Finishing: Perfect for sapphire, agate, jade, quartz,, garnet, and other hard stones
• .
• Glassworking: Smooth edges on artistic glass projects.
• Workshop Efficiency: Enables fast lap changes and stable performance in any workflow.

Explore Related Tools

• Diamond Flat  Lap Discs
• Metal Backing Plates
• Polishing Head Systems