Made for jewelry designers, high quality diamond, ultimate shiny finish on all precious and fashion jewelry materials.Originally produced for the Bulunmaz Jewelry lathe machine (external version) but can be used with other machines that meets the necessary specifications.Product InfoDimension: 100mm (L) x 10mm (W) x 10mm (D)Weight: 80 g Diamond size: 3 mmDiamond type: Double Concave