The Carmex MT7 Thread Mills are precision carbide drill-mills designed to drill, chamfer, and thread mill internal holes in a single pass. Built for high-volume production, they support UNC, UNF, UNEF, and UNS internal threads and accommodate both right- and left-hand thread configurations.

• Two-fluted design: A dual-flute cutting edge delivers efficient drilling and thread milling in a single operation.
• 45° chamfer: Precise 45-degree entry chamfer for clean thread starts and reduced cutting forces.
• Internal threading support: Compatible with UNC, UNF, UNEF, UNS internal threads and suitable for both right- and left-hand threads.
• Hole versatility: Works for blind and through holes without requiring additional tools.
• Internal coolant bore: Built-in coolant channel delivers fluid directly to the cutting zone for better heat management and longer tool life.
• Material and coating: MT7 Sub-Micron carbide grade with a PVD triple coating for outstanding hardness, toughness, and smooth cutting action.
• Production efficiency: Consolidates drilling, chamfering, and threading into one pass, minimizing cycle times and eliminating tool changes.
• Shank compatibility: MT7 shank design to fit a wide range of high-torque, precision milling centers.

Using this tool, manufacturers achieve repeatable, high-quality internal threads with excellent surface finish while shortening production cycles. The combination of a robust carbide grade, advanced coating, and integrated coolant delivers dependable performance in demanding materials and tight tolerances—making it a reliable choice for mass production environments that require fast, accurate threading in one streamlined operation.