The Carmex Thread Mills Carbide Mini Type MT7 is a compact, high-performance threading tool designed for precision internal and external threads in deep holes. It’s built for engineers and machinists who demand speed, versatility, and consistent results from a single tool.

• Thread profiles: Supports UNC, UNF, UNEF, UNS formats, enabling a wide range of thread standards with one tool
• Sizes & shank: Diameters of 5/16" and 3/8" with MT7 shank for compatibility with standard milling setups
• Thread pitch: 24 TPI (5/16 and 3/8 line sizes) to cover common thread requirements
• Material & coating: Carbide MT7 substrate with a sub-micron TiAlN multi-layer coating (ISO K10–K20) for durability
• Coating advantages: Special triple coating increases tool life and resistance to wear in tough materials
• Flute design: Spiral flutes provide smooth cutting action and allow coolant flow through the flutes for deep-hole threading
• Flute count: Multi-flute configuration (3–5 flutes) reduces machining time without sacrificing thread quality
• Cutting speed: Optimized for medium to high cutting speeds, delivering efficient, consistent threads
• Hard materials: Capable of machining hardened materials up to 45 HRC with reliable performance

Benefits: This single tool unlocks faster thread production by combining internal and external threading capabilities with deep-hole efficiency. The through-flute coolant and spiral geometry minimize cutting forces, reduce the risk of breakage, and improve chip evacuation for cleaner, more accurate threads. The MT7 carbide with TiAlN coating delivers long tool life across a range of materials, making it a practical choice for mold making, automotive, and aerospace applications where precise threading and repeatable results matter.