Carmex Thread Mills Mini Type - For Hard Materials - UN (UNC UNF UNEF UNS) - No. 4 x 40 - MT9

Carmex Mini Type solid carbide thread mills are engineered for precision threading in hardened materials, delivering reliable No. 4-40 threads with an exceptional surface finish. Designed for applications where strength and accuracy matter, this MT9-thread mill is ideal for molds, dies, and precision components that demand durable performance in tough alloys.

• Thread Form: No. 4-40 thread form compatible with UNC, UNF, UNEF, and UNS standard thread types
• Material: Solid carbide for outstanding wear resistance and long tool life in hard workpieces
• Hardness Capability: Suitable for machining hardened materials up to 62 HRc
• Shank: MT9 shank for secure, stable mounting in standard milling machines
• Size/Length: Mini tool profile with No. 4 diameter and 40 mm overall length
• Finish: Optimized geometry to produce clean, precise threads with excellent surface finish

These features translate into real-world benefits: precise thread profiles in hard steels without the need for tapping, reduced tool deflection in tight pockets, and fewer secondary finishing operations. The mini form enables access to restricted areas and small components while maintaining strong thread integrity, making it a reliable choice for high-demand industries such as aerospace, automotive, and precision tooling. With Carmex’s carbide performance, you can expect consistent results, lower downtime, and reliable repeatability across production runs.