Carmex Thread Mills Solid Carbide - With Through Coolant - UNJ (UNJC UNJF UNJEF UNJS) - 1/4 x 20 - MT7

Designed for precision internal threading in UNJ classes (UNJC, UNJF, UNJEF, UNJS), the Carmex MTB Solid Carbide Thread Mills with Through Coolant deliver clean, accurate threads and extended tool life. Built for shops that demand durability and consistent results, this through‑coolant design keeps chips flowing and heat under control for reliable production.

• Through-Coolant Bore: Delivers coolant directly through the tool bore to the cutting edge, improving chip evacuation and reducing heat buildup during threading.
• Solid Carbide Construction: Provides high hardness, stiffness, and wear resistance for stable performance in demanding materials and tight tolerances.
• MTB Thread Milling Technology: Optimized geometry engineered to enhance thread quality, concentricity, and surface finish in UNJ applications.
• UNJ Compatibility: Supports UNJ family threads (UNJC, UNJF, UNJEF, UNJS), making it a versatile choice for aerospace, automotive, and general precision work.
• Size and Shank: 1/4" diameter with 20 threads per inch (1/4-20) and an MT7 taper shank for compatibility with common CNC spindles and toolholders.
• Efficient Chip Control: The coolant-through design aids chip clearance, helping to prevent recutting and maintain a clean thread profile over long runs.

With through‑coolant threading, you can run higher feeds and deeper holes with greater confidence, because heat and chips are managed more effectively. This leads to more consistent thread quality, reduced tool wear, fewer tool changes, and improved overall productivity in precision manufacturing scenarios that rely on UNJ threads and tight tolerances.