Carmex Thread Mills Carbide Mini Type - UNJ (UNJC UNJF UNJEF UNJS) - 1/2 x 13 - MT7

The Carmex Carbide Mini Thread Mill is a precision cutting tool designed to effortlessly create UNJ threads using a single, versatile tool. Ideal for aerospace, automotive, and high-precision engineering applications, it delivers reliable performance in deep-hole work and varied materials.

• Thread forms and range: Supports UNJ family (UNJC, UNJF, UNJEF, UNJS) with a 1/2 x 13 thread profile; capable of producing a wide range of thread pitches, and usable for both internal and external threads with the same tool.
• Coating and material: Sub-Micron MT7 carbide with a Titanium Aluminum Nitride multi-layer coating (ISO K10-K20) for superior wear resistance and longer life.
• Cutting speed and efficiency: Optimized for medium to high cutting speeds, enabling fast material removal and shorter machining cycles without sacrificing precision.
• Deep-hole threading: Coolant-through-flutes combined with spiral geometry support stable chip evacuation and threading in deep holes.
• Flute design and reliability: Spiral flutes provide smooth cutting action; multi-flute configuration (3–5 flutes) reduces machining time and improves rigidity; triple coating extends tool life.
• Material hardness capability: Capable of machining hardened materials up to 45 HRc, expanding its use across tougher alloys and components.

This tool reduces the risk of breakages common with traditional tapping, delivers consistent thread quality, and streamlines production by enabling both internal and external UNJ threads with a single, compact carbide mill. Its coated MT7 substrate and optimized flute geometry make it a reliable choice for high-speed threading tasks, especially where deep-hole access and rapid cycle times matter.