The Carmex Thread Mills Mini Type is a solid carbide thread milling cutter with an internal through-coolant bore, engineered for through-coolant threading in small pre-holes. Built for professional machining, it delivers reliable internal threads with efficient chip control and edge cooling across UNC, UNF, UNEF and UNS standards.

• Through-coolant bore: internal channel delivers coolant directly through the tool to the pre-hole for high-pressure flow and effective edge cooling during threading.
• Internal cooling capability: coolant washes the cutting edge and surrounding area to minimize heat buildup and tool wear.
• Chip evacuation during threading circle: coolant flow helps carry away chips as you complete each threading pass, improving stability and finish.
• Solid carbide construction: rugged, wear-resistant material that maintains precision in demanding threading operations.
• Thread size: No. 8 x 32 for UNC/UNF/UNEF/UNS internal threads, suitable for common imperial thread forms.
• MT7 shank: compatible with a wide range of standard milling spindles for dependable performance.
• MTSB design family: part of Carmex’s optimized solid carbide line, tuned for precise mini-type threading applications.

With the internal through-coolant bore and high-pressure coolant delivery, this mini thread mill sustains a cooler cutting zone, extending tool life and promoting consistent thread quality across materials. The through-coolant capability and efficient chip wash during the threading circle translate to smoother operations, tighter tolerances, and cleaner finishes. Ideal for production environments that require reliable internal threading in small-diameter holes—supporting automotive, aerospace, mold-making, and general precision machining workflows where repeatable results matter.