Carmex Thread Mills Mini Type - For Hard Materials - UN (UNC UNF UNEF UNS) - 5/16 x 18 - MT9

Designed for precision internal threading in hard materials, Carmex Thread Mills Mini Type delivers reliable, high-quality threads in UNC, UNF, UNEF, and UNS standards. This solid carbide tool is built to perform in challenging applications, providing a strong blend of durability, accuracy, and a superior surface finish.

• Diameter x Thread Pitch: 5/16" diameter with 18 TPI (5/16-18), optimized for clean, consistent thread milling.
• Thread Standards: Compatible with UNC, UNF, UNEF and UNS internal threads to cover common fastening needs.
• Material: Solid carbide construction for outstanding wear resistance and long tool life in tough materials.
• Shank: MT9 shank for secure, stable mounting in standard tool holders and milling setups.
• Hard Material Capability: Engineered to machine hardened materials up to 62 HRc while preserving thread integrity.
• Surface Finish: Delivers an excellent surface finish on threaded bores, reducing or eliminating post-machining deburring.
• Design Focus: Specifically optimized for internal thread milling, enabling accurate thread form in limited or deep bores.

By combining carbide hardness with Carmex’s engineered geometry, this mini thread mill enables precise, repeatable internal threads in demanding materials. The tool’s robustness supports longer production runs, tighter tolerances, and cleaner finishes on critical components such as molds, dies, automotive parts, and aerospace hardware. Its MT9 shank ensures dependable engagement with compatible holders, making it a dependable choice for machined parts that require strong, accurately formed UNC/UNF/UNEF/UNS threads.