Engineered for precise internal threading, the Carmex MT7 Solid Carbide Internal Thread Mill delivers dependable 3/8-24 threads in UNC, UNF, UNEF and UNS standards. It’s built for efficiency and long tool life, making it ideal for shops and job sites that value consistent results.

• Solid carbide construction: Provides rigidity and wear resistance for demanding threading operations, helping extend tool life.
• Internal thread milling: Precisely forms internal threads (3/8-24) in holes, offering a tapping-free solution for both through-holes and blind holes.
• Thread form compatibility: Supports UNC, UNF, UNEF and UNS thread standards for broad versatility in a single tool.
• Size and pitch: 3/8" diameter with 24 TPI (3/8-24) for common internal-thread applications.
• Flute geometry: Multi-flute design with 3–5 flutes enhances cutting action, surface finish, and chip evacuation.
• MT7 shank: Morse Taper 7 shank ensures secure seating and compatibility with a wide range of milling machines and tool holders.
• MT line design: Part of Carmex’s MT thread milling family, optimized for efficient, cost-conscious threading with reliable results.

Whether used in prototypes, fixtures, or production parts, this internal thread mill delivers clean, accurate threads with repeatable results. Milling threads with this tool can reduce setup time and avoid tapping complications, while the carbide construction and multi-flute geometry promote long tool life and excellent chip control. Ideal for engineers and machinists needing a dependable, versatile solution for internal threading tasks.