Carmex MTSB Mini Thread Mills are compact, through-coolant solid carbide cutters designed for precise UNC/UNF/UNEF/UNS threading in pre-drilled holes. With an MT7 shank and No. 6 x 32 size, they deliver dependable thread formation in tight spaces and challenging materials.

• Through-coolant core: Internal bore delivers coolant at high pressure through the tool into the pre-hole, actively washing away chips as you thread.
• Solid carbide construction: MTSB mini-type design offers rigidity and wear resistance for consistent thread profiles and longer tool life.
• Thread compatibility: Engineered for UN-series threads (UNC, UNF, UNEF, UNS) in the No. 6 x 32 size.
• MT7 shank: Standard MT7 interface for secure mounting in common toolholders and coolant setups.
• Compact form factor: Designed for tight cavities and small-diameter applications without compromising cutting performance.

By combining a through-coolant bore with a robust solid carbide core, these cutters deliver efficient chip evacuation and superior cooling of the cutting edge throughout the threading pass. Expect cleaner thread profiles, reduced risk of built-up edge, and steadier production cycles—even in tougher materials or deeper holes. The result is reliable No. 6 x 32 UNC/UNF/UNEF/UNS threads with tight tolerances, achieved with fewer tool changes and less post-processing—making it ideal for precision assemblies in automotive, machinery, and electronics components.