... Tool, Countersink, Round Rod, Tool Bit, Carbide Tip, Ejector Pin, Punch, Mold Etc.2) Super high hardness and precision, extreme smooth ... cutting (good anti-sticky).4) Longer tool life, super high wear resistant and impact-resistant application.5) Work piece material ... non-ferrous metals, etc.6) Very advantageous price.Please just feel free to contact us. Any questions are highly welcome! high quality ...