Carmex Thread Mills Carbide Mini Type - UN (UNC UNF UNEF UNS) - No. 3, No. 4 x 48 - MT7

Precision carbide mini thread mills designed for UN-series threads (UNC, UNF, UNEF, UNS). Built for high-speed, deep-hole threading across a range of materials, they deliver reliable precision in compact workpieces.

• Thread compatibility: UN-series threads—No. 3 and No. 4 with a 48 mm length, suitable for internal and external threading.
• Coating & material: MT7 sub-micron carbide with a TiAlN multi-layer coating (ISO K10–K20) for outstanding wear resistance.
• Cutting geometry: 3–5 spiral flutes provide smooth cutting action and efficient chip evacuation.
• Coolant delivery: Through-flutes enable effective coolant delivery for deep-hole work and better heat management.
• Speed & efficiency: Optimized for medium to high cutting speeds, delivering shorter machining times.
• Depth capability: Designed to enable machining in deep holes with reliable performance.
• Material capability: Suitable for a broad range of materials, including hardened workpieces up to 45 HRC.
• Versatility: The same tool can produce a wide range of thread pitches and both internal and external threads.
• Durability: Special triple coating extends tool life in demanding threading applications.

This cutter is ideal for shops that need fast, precise threading in tight spaces—think precision molds, automotive components, and aerospace fasteners. The MT7 carbide with TiAlN coating reduces wear at high speeds, while through-coolant and multi-flute design help maintain thread quality in deep holes. With the ability to create both internal and external threads using a single tool and to handle hardened materials up to 45 HRC, it saves setup time, lowers tooling costs, and delivers consistent results across a range of UN thread sizes.