The Carmex MTZ Through-Coolant Thread Mills deliver precise metric threading with carbide durability, built for through-hole work and MT7 tooling systems. Designed to keep cutting edges cool and clear, they provide reliable performance in demanding internal-threading tasks across steel, stainless, and aluminum.

• Through-Coolant Flutes: coolant flows directly through the flute to the cutting edge for improved heat control and chip evacuation.
• Thread Milling for Through Holes: optimized geometry supports direct chip removal and stable thread formation in through-holes.
• Carbide Construction: high-hardness carbide offers long tool life and consistent thread quality under heavy cutting conditions.
• MT7 Shank Compatibility: engineered to fit standard MT7 toolholders for quick setup and repeatable results.
• Metric Thread Options: precision M6 and M8x1 thread forms available in a single, ready-to-use tool family.
• Machine-Friendly Design: suitable for machines with limited or no external coolant systems, expanding where you can thread.

With the MTZ through-coolant thread mill, you achieve cleaner, more accurate threads and longer tool life thanks to continuous cooling and efficient chip removal. The integrated through-coolant design reduces build-up and allows higher cutting speeds, translating to faster cycles and more reliable results on critical internal-thread applications. Ideal for production environments that require consistent metric threads in through-holes, this tool helps shops and manufacturers increase throughput while maintaining precise thread form.