TULTEK INDUSTRIES INC. is a professional manufacturer committed to HSS and carbide cutting tools. Our main products are different standards of HSS twist drills, HSS taps, HSS round dies, solid carbide drills, solid carbide end mills and other carbide cutting tools. With experienced teams, advanced technology and professional skills, we can supply you a series of high quality cutting tools and excellent service. Solid carbide twist drills Solid carbide center drills Solid carbide spot drills Solid carbide step drills Other non-standard carbide drills If you are interested in any of those items, please just let me know. I will be happy to offer you more details. Thanks.