The Carmex Vertical Milling CMT Three Flute Insert – Groove Milling (C10W121) is a precision vertical milling insert paired with a dedicated tool holder designed to handle threads, grooves, chamfers, and more. It’s ideal for machinists, engineers, and workshop operators who value repeatable results and versatile cutting options. Chamfer inserts are also available to extend its capabilities.

• Ground profile for high precision: The ground geometry delivers tight tolerances and smooth cutting action, enabling accurate groove milling and thread work even at elevated cutting parameters.
• Universal threading capability: The same insert works for both right-hand and left-hand threads, reducing setup time and simplifying inventory management.
• Solid clamping with coolant-capable toolholders: The combination of a robust, repeatable clamping method and toolholders with weldon shank and a coolant bore supports reliable performance, cleaner finishes, and easier heat management.

This insert system helps you streamline your workflow by enabling multiple operations with one insert—grooves, threads, and chamfers—without frequent tool changes. The ground profile and secure clamping deliver consistent results across parts, while the coolant-enabled holders help control heat and chip buildup for better surface finish. Paired with the C10W121, you can operate at higher parameters with confidence, reducing downtime, minimizing rework, and achieving more predictable production outcomes.