Carmex MTB Solid Carbide Thread Mills with Through Coolant are engineered for precise thread milling in UNC, UNF, UNEF, and UNS forms. Built for through-hole work with an MT7 shank, this tool delivers clean, accurate threads and extended life in demanding metalworking environments.

• Diameter x thread pitch: 5/8" diameter, 11 TPI (UN forms: UNC/UNF/UNEF/UNS)
• Through-coolant bore: coolant is delivered through the bore directly to the cutting edges, enhancing chip evacuation and cooling for consistent threading
• Solid carbide construction: rigid, wear-resistant material that maintains sharpness and precision over many cycles
• MT7 shank: compatible with standard MT7 tool holders for secure, accurate seating
• MTB platform advancement: built on Carmex’s MT line with an innovative through-bore cooling feature to maximize performance and tool longevity
• Thread-form compatibility: optimized for common metric and imperial through-holes in UNC/UNF/UNEF/UNS specifications

The through-coolant capability means coolant travels through the tool to the cutting zone, aiding chip removal from the hole and reducing heat buildup. This results in more consistent thread profiles, fewer interruptions for coolant changes, and less wear on both tool and workpiece. The MTB design is especially advantageous in high-volume production or precision applications where reliable thread quality and longer tool life matter most.