The Carmex MTB solid carbide thread mill with through coolant is engineered for precision NPSF thread milling. Built for shops that demand reliable chip evacuation and longer tool life, it excels in deep-hole threading and challenging materials.

• Through-Coolant Bore: Delivers coolant directly through the tool to the cutting edges, improving chip removal and cooling in deep holes.
• Solid Carbide Construction: High rigidity and wear resistance for accurate, consistent threads and longer tool life.
• MT7 Shank: Robust, high-precision interface that fits a wide range of CNC spindles for secure performance.
• NPSF Thread Form: Optimized for National Pipe Straight Thread standards to ensure reliable engagement in fittings and housings.
• Thread Size Range: Cuts 1/4" to 3/8" diameter threads at 18 TPI (18 threads per inch).

Through-coolant threading creates a cleaner cutting environment, reducing chip buildup and heat that can affect tolerances. The result is tighter, more consistent thread profiles, fewer defects, and lower tooling costs over time. The MT7 shank broadens compatibility with common CNC systems, while the carbide composition delivers durability for high-volume production scenarios—from hydraulic manifolds to automotive valve bodies.