Carmex Vertical Milling CMT Multi Flute Insert - Threading - S164F16UNMT8 is a vertical milling system that uses indexable inserts and dedicated tool holders to tackle a wide range of operations—threads, grooves, chamfers and more. Ground-profile inserts deliver high precision and excellent performance, even at demanding machining parameters.

Designed for a broad audience—from engineers and machinists to shop owners and hobbyists—the CMT Vertical Mill-Thread setup emphasizes reliable, repeatable results with a solid, accurate clamping method that supports full repeatability in production runs.

• Ground-profile inserts for precision: Ground profiles provide high precision and excellent performance, delivering a high-quality surface finish even at higher machining parameters.
• Solid, repeatable clamping: A robust clamping method ensures stable seating and true repeatability across parts, reducing setup time and variation.
• Universal threading with versatile toolholders: One insert handles both right- and left-hand threads; toolholders include a Weldon shank and a coolant bore, and chamfer inserts are available to expand your milling capabilities.

This system helps you achieve reliable vertical milling threading and finishing outcomes with consistent results, streamlined setup, and flexible compatibility for a wide range of applications in production, maintenance, or hobbyist projects.