Single Crystal Natural diamond cutting tools,inserts,drill Bits, Milling Cutter Material: Single-Crystal Diamond (Mono-crystalline) Application: Especially for brass, aluminum, copper,Acrylic chamfer,dia-cutting glass lens, Acrylic, CP board ,etc Competite price Product Description 1. This turning insert with natural diamond is widely used in ultra precise mirror turning, milling and cutting, etc. 2. It can be specially designed and produced for customers' need. 3. The raw materials give it strong hardness and high performance 4. You can inquire us for the specifications.