The Carmex Thread Mills Carbide Mini Type MT7 is a compact, high-performance thread milling tool designed for UN/UNC/UNF/UNEF/UNS threads in through-coolant setups. It’s tailored for machinists who need fast, precise internal and external threads in deep-hole work and across a range of materials, including hardened steels.

• Thread compatibility: Supports UN, UNC, UNF, UNEF, and UNS thread standards in 3/8-16 size (MT7 shank).
• Carbide grade and coating: Sub-micron MT7 carbide with Titanium Aluminium Nitride multi-layer coating; triple-coated for extended life (ISO K10–K20).
• Through-coolant and deep-hole capability: Coolant through the flutes provides excellent cooling for deep-hole threading and chip evacuation.
• Flute design: Spiral flutes deliver smooth cutting action and stable performance.
• Multi-flute efficiency: 3–5 flutes enable faster material removal and shorter machining times.
• Material compatibility: Capable of machining hardened materials up to 45 HRc with consistent thread quality.
• Versatility: A single tool can produce a wide range of thread pitches and both internal and external threads.
• Reliability: Short profile minimizes cutting forces and reduces the risk of tool breakage in tough jobs.

With the MT7 mini thread mill, you gain a highly adaptable solution that streamlines setup, reduces cycle times, and delivers dependable thread integrity across a spectrum of applications—from automotive fittings to aerospace components and precision molds. The through-coolant design keeps heat under control during deep-hole threading, while the advanced coating and carbide substrate resist wear for longer tool life. This tool simplifies inventory by covering multiple thread forms and pitches in one compact tool, helping you save time and optimize your milling operations.