The carbide material with tip or side part running tools are specialy working use for steel based material drilling or cutting holes or side milling etc., Hold on the machine or CNC auto rotary handles, It has got highly cutting ability more than tranditioanl cutting instruments. Our company has got long time expirence in this item, and hope to establish long time business cooperation with every buyers. All inquiryies from you are warmly welcome. Thanks for your cooperation. Hopefully get your information as soon as possible.