Carmex MTB Thread Mills are high-precision, solid carbide tools designed for through-coolant thread milling of UNC/UNF/UNEF/UNS holes. Built for machinists and shops that demand durable performance and consistent threads in metal components.

• Through-coolant bore: Delivers coolant directly to the cutting zone through the tool, enhancing chip evacuation and cooling for stable threading in demanding materials.
• Diameter and pitch: 3/8" diameter with 32 TPI, aligning with standard thread sizes for reliable hole threading.
• Thread forms supported: Supports UNC, UNF, UNEF, and UNS thread forms for versatile threading across common specifications.
• Material and construction: Solid carbide construction delivers rigidity, wear resistance, and long tool life in tough metal applications.
• Shank compatibility: MT7 shank designed for secure, high-precision seating in MT7 tool holders on CNC machines.
• Geometric efficiency: Optimized flute geometry and cutting edges for clean, consistent threads and smooth cutting action.

With the MTB design, operators benefit from easier chip clearance and better heat management, reducing the risk of built-up edge and thread inaccuracies. The through-coolant system and rugged carbide construction translate to longer tool life and lower per-thread costs, especially when threading hard metals or high-strength alloys. This tool enables faster cycle times and more reliable thread quality for critical components in automotive, aerospace, and general manufacturing, where precise, repeatable threads matter.