The Carmex MTZ carbide thread mill is a through-coolant cutting tool engineered for precise Whitworth BSW and BSF threading in through-holes. It’s built for shops that demand consistent thread quality, reliable chip control, and versatility on machines without external coolant systems.

• Through-Coolant Flute Design: Internal channels deliver coolant directly to the cutting edge, improving cooling, reducing wear, and enhancing surface finish.
• Carbide Construction: Rigid, high-precision carbide body enables stable threading at higher speeds and with demanding materials.
• Whitworth BSW/BSF Thread Forms: Specifically engineered to produce accurate Whitworth thread profiles for standard and fine-pitch applications.
• MT7 Shank: Morse Taper 7 shank fits a wide range of milling machines for secure retention and smooth tool changes.
• Through-Hole Thread Milling: Optimized geometry supports threading through holes with direct chip removal, reducing clogging and cycle time.
• Size and Pitch: Available in 5/8" and 7/8" diameters with 11 threads per inch (11 TPI) to match common Whitworth specifications.

With direct coolant delivery at the cutting edge and an efficient chip-removal strategy, this tool delivers dependable thread quality across materials while minimizing heat buildup. Its through-hole threading capability simplifies setups, eliminates the need for external coolant routing on many machines, and supports reliable, repeatable Whitworth threads in demanding industrial applications.