Specification: R0.3~R100 Material: Element Six Single Crystal Diamond, South African Natural Diamond Tool bar size: 620 Tool holder material: tungsten steel Speed: 5000-100000r/min Feed: 1500-5000mm/min Cutting depth: 0.05-0.2mm Processing materials: aluminum alloy, copper, acrylic and other non-ferrous metals and non-metals Features: good finish, highly cost effective.