Carmex Thread Mills Carbide Mini Type - UN (UNC UNF UNEF UNS) - 1/4 x 20 - MT7 - Long - 14mm Reach

Introducing the Carmex Carbide Mini Type Thread Mill — a versatile threading tool designed for CNC operators who need reliable internal and external threading in tight spaces. With UN-series threads (UNC/UNF/UNEF/UNS) at 1/4-20, an MT7 carbide body, and a long 14 mm reach, it’s optimized for high-speed, precise threading across a wide range of materials.

• Thread format: UN-series threads (UNC/UNF/UNEF/UNS) in 1/4-20 size
• Shank and reach: MT7 carbide shank with a 14 mm reach for deep-hole threading and hard-to-reach features
• Material and coating: Sub-micron MT7 carbide substrate with TiAlN multi-layer coating (ISO K10–K20) for wear resistance and heat management
• Flute design: Spiral flutes (3–5) deliver smooth cutting action and efficient chip evacuation
• Coolant delivery: Through-flutes coolant enhances cooling and chip removal during deep-hole threading
• Performance: Suited for medium to high cutting speeds, helping to shorten cycle times
• Durability: Triple-layer coating improves wear life and tool longevity
• Versatility: One tool capable of producing a wide range of thread pitches and both internal and external threads
• Materials: Effective for a broad material spectrum, including hardened materials, enabling robust threading in challenging parts

This thread mill is engineered to solve common threading challenges: it reduces the need for multiple tools by handling internal and external threads in one pass, enables deep-hole threading with coolant through the flutes, and supports high-speed operations without sacrificing accuracy. The combination of a short profile and multi-flute geometry lowers cutting forces and improves stability, which helps prevent chatter and extends tool life. It’s an ideal choice for precision manufacturing in aerospace, automotive, and tooling where reliable, long-lasting threads matter.