Introducing the Carmex MTZ Through-Coolant Thread Mill — a carbide threading tool built for through-hole NPTF work. It’s designed for shop floors that demand precise, reliable threading with efficient coolant delivery, even when an external coolant system isn’t available.

• Through-Coolant Flutes: Integrated coolant channels in the flutes deliver cooling directly to the cutting edge, optimizing heat control and chip evacuation for a smoother cut.
• NPTF Thread Range: Covers 1/2" to 3/4" through-hole threads with 14 TPI, enabling accurate, consistent thread formation in a single operation.
• Carbide Construction: Tough, wear-resistant carbide design for extended life in demanding threading applications.
• MT7 Shank: Rugged MT7 shank for solid toolholding and reliable performance in high-speed milling environments.
• Through-Hole Threading Focus: Specifically engineered for threading through holes with direct chip removal, reducing setup steps and improves throughput.
• No External Coolant Required: Ideal for machines without external coolant systems, thanks to effective through-tool cooling.
• Precision Geometry: Optimized flute geometry and cutting edge geometry to produce clean, accurate NPTF threads with tight tolerances.

The MTZ through-coolant design delivers coolant right to the cutting edge, minimizing heat buildup and extending tool life while maintaining a sharp, consistent thread profile. Its direct chip evacuation and compatibility with machines lacking external coolant streamline setups and reduce downtime, making it a practical choice for hydraulic fittings, manifolds, and other components requiring robust through-hole threading. With its MT7 interface, this tool provides stable rigidity and dependable performance across a range of materials and machining conditions.