The Carmex MTSB Mini Type Through-Coolant Thread Mill is a precision solid-carbide tool built for small-diameter threading in UN, UNC, UNF, UNEF, and UNS forms. Designed for machinists who need clean, accurate threads in tight pockets, it combines compact geometry with effective cooling to boost performance.

• Through-Coolant Bore: Delivers high-pressure coolant directly through the tool into the pre-hole, washing away chips during the threading arc and cooling the cutting edge for longer tool life.
• No. 6 x 32 Thread Size: Compact mini design optimized for small-diameter threads, enabling access in confined spaces without sacrificing thread accuracy.
• Mini Type Design: Specifically engineered for tight cavity threading, delivering stable geometry in a compact form factor.
• Solid Carbide Construction: Rigid, wear-resistant tip that maintains geometry for consistent thread profiles across materials.
• UN Thread Compatibility: Supports UNC, UNF, UNEF, and UNS thread standards with precise pitch and crest accuracy.
• MT7 Shank/Taper: Standard machine-taper interface ensures secure seating, reduced runout, and broad compatibility with common holders and collets.
• Optimized Flute Geometry: Flutes designed to maximize chip evacuation and cutting efficiency throughout the threading circle.

By integrating through-coolant into the milling cut, this tool minimizes heat at the cutting edge, reduces burr formation, and extends tool life even in demanding materials. The result is smoother thread engagement, tighter tolerances, and better surface finish in through-hole applications—ideal for automotive, aerospace, and precision-machining environments. Use the Carmex MTSB Mini Type when you need reliable small-diameter threads with efficient chip clearance and consistent performance across production runs.