The Carmex Thread Turning Holder Standard is a precision internal-threading tool designed for machinists who demand reliable, repeatable internal threads. This right-hand holder features a 350 mm overall length and a 50 shank size, and it’s designed to work seamlessly with 27IR inserts and U-Type inserts for secure, accurate cuts.

• Right-hand internal threading holder: Optimized for internal threads from the right-hand cutting direction to ensure consistent engagement in confined bores.
• 350 mm OAL: Extended reach to access deep holes and recessed cavities without sacrificing stability.
• 27IR insert compatibility: Accepts standard 27IR inserts for reliable threading geometry and straightforward tooling changes.
• U-Type insert compatibility: Built to couple with U-Type inserts for a secure, precise fit and smooth tool alignment.
• Shank size: 50, providing robust clamping and rigid tool paths during delicate internal threading operations.
• 1.5° helix angle: Designed to optimize chip evacuation and reduce cutting forces, promoting a cleaner finish and longer insert life.

This holder delivers a practical, dependable solution for internal threading tasks, helping you achieve consistent thread quality in housings, bushings, and other deep or tight cavities. The combination of long reach, secure insert interface, and optimized chip control supports efficient setup, reduced cycle times, and repeatable results across automotive, hydraulic, and precision manufacturing applications.