8" Diameter 3/4" Inner Hole Aluminum Master Support Lap

The Aluminum master lap for Diamond coated Flat Lap Disk Grinding wheel, it is only a machine accessories,The Aluminum master lap is only a machine accessories. the material is 100% aluminum, no diamond coated on the surface.We recommend using the Aluminum master lap for Diamond coated Flat Lap Disk.Diamond coated flat lap disk grinding wheel can be installed on the aluminum master lap. So if you want to sharpening the gemstone or steel knives, you need purchase a diamond disk, and a aluminum master lap.