4-40 UNS Solid Carbide Micro UN Thread Mills Single Form 2Pcs AlTiN Coated Threading Cutter CNC Blind Milling Bits Deep Holemaking for High-Temp Titanium Alloy Stainless Steels

Perfect for Your Most Common Materials: Whether you’re machining aluminum parts for a prototype, copper components for electronics, or graphite/glass fiber for specialized projects, this thread mill works seamlessly. It eliminates the hassle of switching between multiple tools for different materials—one tool handles them all. Professional Precision for Difficult-to-Machine Steels: Transition from risky tapping to high-reliability thread milling with the WKSTOOL Solid Carbide Thread Mill. Designed for the modern machinist who demands accuracy in hardened materials, this single-form tool is the ultimate solution for micro-threading in environments where precision is non-negotiable. Advanced Engineering for Blind Holemaking: Tapping small holes in hardened steel often leads to broken tools and scrapped parts. Our Single Form design reduces cutting pressure significantly compared to multi-form tools, allowing you to reach a thread depth with total confidence. The AlTiN nano-coating acts as a thermal barrier, providing the lubricity needed for high-speed machining without sacrificing tool life.

• Stop Catastrophic Tap Breakage: Our single-form design significantly reduces cutting pressure and tool deflection. Unlike traditional taps, this thread mill excels in blind holemaking, allowing you to clear chips easily and save your workpiece from tool failure.
• Heat-Resistant AlTiN Nano-Coating: Engineered for extreme environments, the AlTiN coating provides a thermal barrier that allows for high-speed machining. Special designed for high performance in titanium alloys, inconel, nickel alloys, and other high-temperature materials with outstanding performance in difficult-to-machine steels, ASTM A240,ASTM A276,ASTM A312 stainless steels, and tool steels
• Ultra-Precision Micro Threading: Specifically designed for metric threads,Perfect for internal and external 60° threads where micro-precision is non-negotiable, ensuring a superior surface finish in both ferrous and non-ferrous metals.capable of milling various pitch sizes and supporting both right-hand and left-hand threads. Maximize your shop’s efficiency by using one tool for multiple intricate CNC threading applications.
• Industrial-Grade Compatibility: Optimized for lathes, milling machines,Swiss-style lathes, high-speed CNC centers, and carving machines.precise thread forstructural parts, bolts, nuts manufacturing leak-proof seals on water pipe joints, valve interfaces, and pipeline fittings.
• Thread Size:4-40 UNS / Min.Screw Size:4 / Cutter Dia. (D1):.077 Inch(1.96mm) / Neck Dia. (D3):.043 Inch(1.1mm) / Max Depth of Thread (L2):.255 Inch(6.5mm) / Shank Dia. (D2):.157 Inch(4mm) / Overall Length(L1):1.96 Inch(50mm) / Package:2Pcs