Carmex Thread Mills Carbide Mini Type - UNJ (UNJC UNJF UNJEF UNJS) - 7/16 x 20 - MT7

The Carmex Carbide Mini Thread Mill is a precision threading solution designed for machinists who work in tight spaces and demand versatility. It creates UNJ threads (internal and external) with a single tool, delivering fast, reliable results across challenging materials.

• Thread form compatibility: Produces UNJ thread forms including UNJC, UNJF, UNJEF, and UNJS, enabling broad applicability without switching tools.
• Size & holder: 7/16" diameter with 20 TPI pitch (7/16 x 20) and MT7 shank for compatible milling setups.
• Coating & material: Sub-micron carbide (MT7) with a TiAlN multi-layer coating for wear resistance and heat management across long production runs.
• Flute design: Spiral flutes provide smooth cutting action and through-coolant channels improve heat dissipation and chip evacuation in deep holes.
• Flute count: Multi-flute configuration (3–5 flutes) reduces cycle time and increases rigidity for stable milling.
• Material capability: Suitable for general materials and hardened steels up to 45 HRc, enabling broad process coverage.
• Deep-hole threading: Through-coolant and short-profile design enable threading in deep holes with minimal tool deflection.
• Durability: Triple coating technology extends tool life in demanding production environments.
• Versatility: The same tool can produce a wide range of threads and pitches, simplifying tooling inventories.

This thread mill delivers precise UNJ threads in a single setup, dramatically reducing machining time and the need for multiple tools. The through-flute cooling, short and rigid profile, and carbide reliability help maintain tight tolerances and smooth finishes even at high speeds. By enabling both internal and external threads with one tool, it minimizes downtime and eliminates the need for tapping, reducing the chance of broken taps. Built to handle hardened materials well beyond standard steels, it’s a dependable choice for critical components in aerospace, hydraulics, and precision assemblies.