Carmex Thread Mills Solid Carbide - Internal & External Thread - NPT - 1/4, 3/8 x 18 - MT7

Carmex MT solid carbide thread mills are designed for reliable, cost‑effective threading on CNC mills and lathes. Perfect for shops that need precise NPT threads on both internal and external features, these tools deliver consistent results from startup to finish.

• Solid carbide construction: provides rigidity, wear resistance, and long tool life for demanding threading jobs.
• Internal & external threading: capable of milling NPT threads on both inside bores and outside surfaces in a single setup.
• Thread sizes: available for 1/4" and 3/8" diameter workpieces with 18 threads per inch (NPT).
• Flute count: multiple flutes (3–5) optimize chip evacuation and cutting stability for clean, accurate threads.
• Coated cutting edges: engineered coatings reduce wear and improve surface finish during extended machining sessions.
• MT7 shank: compatible with a wide range of milling tools and holders, delivering broad machine compatibility.
• Cost‑effective threading solution: optimized design minimizes cycle times and tool‑cost per thread without sacrificing accuracy.

The MT line focuses on delivering precise thread profiles with predictable performance, making it a practical choice for production runs, prototyping, and repair work. By combining solid carbide durability with a multi‑flute design, these thread mills help you achieve smooth threads, fewer passes, and quicker setups—ultimately supporting higher throughput and reliable thread quality across common NPT applications.