OPT insists on creating brands with its quality, when you buy OPT products, you are buying the reliable performance and tool life. For over years, OPT’s tools have been fully recognized by domestic and overseas customers.

Carbide Twist Drill

  • 8D High Performance Solid Carbide TiAlN Coated Drill Bit for Steel Machining

    8D High Performance Solid Carbide TiAlN Coated Drill Bit for Steel Machining

    Our Carbide Diameter Drill for Steel is a professional cutting tool engineered to deliver clean, accurate holes in various steel materials. Made from premium carbide or high-speed steel with optimized geometry, it ensures exceptional durability, positioning accuracy, and machining efficiency for industrial production, metal fabrication, and maintenance applications.

  • 5D Solid Carbide Drill Bit for Stainless Steel & Hardened Steel Model 836

    5D Solid Carbide Drill Bit for Stainless Steel & Hardened Steel Model 836

    This 5D carbide drill bit is a high-performance cutting tool specially designed for precision drilling in hardened steel, stainless steel, carbon steel, tool steel and other hard-to-machine metals. With 5× diameter depth ratio, it ensures stable and accurate deep-hole drilling with minimal deflection. It fits CNC machining centers and automated production lines, enabling self-centering without center drilling.

  • 3D Tungsten Carbide Drill Bits for Steel Machining – High Performance CNC Cutting Tools

    3D Tungsten Carbide Drill Bits for Steel Machining – High Performance CNC Cutting Tools

    Our 3D Tungsten Carbide Drill Bits are precision-engineered cutting tools designed for high-performance drilling in hardened steel, stainless steel, alloy steel, and other tough-to-machine materials. Featuring ultra-fine grain carbide composition and a unique 3D flute design, these drill bits deliver superior chip evacuation, extended tool life, exceptional accuracy, and high-speed machining stability. They are ideal for industrial CNC machining, automotive manufacturing, aerospace engineering, mold & die applications.