The precison Master Support Plate Laps is  Ground Flat and Parallel  are specialized tools used in lapidary and precision machining processes. These support plate laps serve as base plates for other laps, helping to provide a stable and level surface for various lapidary operations. Here are the key features and details of these support plate laps:

1. Base Plate Function: The primary purpose of the Ground Flat and Parallel Master Support Plate Laps is to serve as a foundational base for other laps, such as diamond-coated flat laps used for grinding and polishing tasks.

2. Flat and Parallel Design: These support plate laps are manufactured with a high degree of flatness and parallelism. This ensures that the surface is uniform and even, providing a stable foundation for attaching other laps.

3. Thickness: The support plate laps have a thickness of 1/4", which contributes to their stability and rigidity. This thickness is sufficient to maintain a level surface and prevent warping or distortion during use.

4. No Abrasive Charge: Unlike diamond-coated laps designed for grinding and polishing, the support plate laps are not charged with abrasive materials. They are meant to provide a clean and non-abrasive surface for other laps to be attached.

5. Usage: These support plate laps are versatile and can be used in various lapidary and machining applications where a level and stable base is required. They can be employed in conjunction with different types of laps to achieve desired results.

6. Applications: These support plate laps are commonly used in lapidary workshops, jewelry making, and other precision machining tasks. They provide a reliable foundation for attaching other laps and achieving accurate grinding, shaping, and polishing.

7. Compatibility: Depending on the design and size of the laps you intend to use, it's important to ensure that the support plate laps are compatible in terms of arbor hole size and attachment mechanisms.

Overall, the Precision Aluminum master lap play a crucial role in ensuring precision and accuracy in lapidary work and machining processes. By providing a level and stable surface for other laps, they contribute to consistent and high-quality results in grinding, shaping, and polishing tasks.