Carmex MTSB Mini Thread Mills with Through Coolant are compact solid carbide cutters designed for precise threading in UN thread types (UNC, UNF, UNEF, UNS). Engineered for through-coolant machines, they deliver coolant directly through the tool to the pre-hole, delivering superior cooling and chip control during the threading pass.

• Tool type: Mini MTSB thread milling cutters with an internal coolant bore for through-coolant operation
• Coolant delivery: High-pressure coolant travels through the tool into the pre-hole, washing away chips as the thread is cut
• Material: Solid carbide for enhanced hardness, wear resistance, and long-term precision
• Sizes: No. 10 and No. 12 x 24, designed for MT7 toolholders
• Thread compatibility: Suitable for UN thread forms: UNC, UNF, UNEF, UNS

The through-coolant design keeps the cutting edge cooler, reduces built-up edge, and supports cleaner thread surfaces and tighter tolerances. With efficient chip evacuation and consistent temperature control, this cutter is well-suited for demanding threading tasks in automotive, aerospace, and general engineering environments where reliability and tool life matter.