The Carmex MTB Solid Carbide Thread Mill with Through Coolant is a high-precision threading tool designed for UNJ forms (UNJC, UNJF, UNJEF, UNJS). Built for demanding machining environments, it delivers cleaner threads and longer tool life through an integrated through-bore coolant system.

• Through-Coolant Bore: Coolant is delivered directly through the bore to enhance chip evacuation and cooling, helping maintain thread integrity and reduce heat buildup.
• Solid Carbide Construction: Rugged, wear-resistant carbide body provides stable cutting performance and extended tool life in tough materials.
• UNJ Thread Form Compatibility: Precisely engineered to cut UNJC, UNJF, UNJEF, and UNJS thread profiles with reliable, repeatable results.
• Size and Shank: 9/16 in diameter x 12 in overall length with an MT7 Morse taper shank for broad compatibility with common milling setups.
• Cutting Geometry: Optimized flute geometry and sharp threading edges promote smooth cutting, consistent thread form, and efficient chip control.

Designed for shops that demand accuracy and durability, this thread mill enables higher throughput by reducing cycle times and minimizing tool wear. The through-coolant design helps you thread deeper into holes with confidence, delivering clean, precise UNJ threads and reducing downtime between tool changes. Ideal for precision assemblies in aerospace, automotive, and general engineering applications where thread integrity and surface finish matter.