The Carmex MTB Solid Carbide Through-Coolant Thread Mill is engineered for reliable, high-precision NPT threading in CNC environments. It’s designed for shops that demand consistent thread quality from 1/2" to 3/4" diameter with 14 TPI, using a MT7 shank for stable, vibration-minimized cutting.

• Through-Coolant Bore: Coolant is delivered through the bore to the cutting edges, enhancing chip evacuation and reducing heat buildup in deep or narrow holes.
• Solid Carbide Construction: A rigid, wear-resistant core that supports higher speeds and longer tool life in demanding threading operations.
• NPT Thread Milling Range: Precisely milled National Pipe Taper threads from 1/2" to 3/4" with 14 TPI, delivering accurate thread form and consistent tolerances.
• MT7 Toolholder Interface: Compatible with MT7 spindles for solid engagement, improved runout control, and dependable performance on modern CNC machines.
• MTB Line Advantage: Builds on Carmex’s MTB platform, combining optimized geometry with integrated cooling to boost productivity and reduce tool wear over time.

In practice, this thread mill enables faster cycle times and cleaner thread surfaces by maintaining cooler, more controlled cutting conditions. The through-coolant design minimizes chip packing and thermal stress, helping extend tool life and maintain tight tolerances across production runs. Its MT7 interface delivers dependable stability, making it a solid choice for job shops and manufacturers tackling internal NPT threading in a range of common metal alloys.