8" Precision 1/4"-20 Left hand Screwback Master Lap

The 1/4"-20 Screwback Master Support Lap is an essential tool for lapidary enthusiasts. This lap is expertly ground to be both flat and parallel, making it an ideal base plate for other laps. The Full Face Master Lap is 6mm thick and does not come charged with abrasive, providing users with the flexibility to choose their preferred abrasive material.
This master lap is designed with a 1/4" 20 thread right-hand configuration, enabling it to fit seamlessly into a variety of cabbing machines that feature a 1/4" female thread on the right-hand side of the shaft. It can also be used with flat lap machines, such as the CrystalMaster 6 and the CrystalMaster 8, that have a 1/4" female thread on top of the arbor.
The 1/4"-20 Screwback Master Support Lap is an essential tool for backing a variety of thin laps, including Ultralaps, diamond plated disks, felt pads, and leather pads. With its superior craftsmanship and versatile design, this lap is a must-have for any lapidary enthusiast looking to achieve precise and polished results.