The Carmex Thread Turning Holder Standard for Internal threading is a right-hand, long-reach tool holder designed for precise internal threads in deep bores, housings, and sleeves. With a 400mm overall length, a 27IR insert interface, and a 60 mm shank, it delivers dependable performance in demanding machining environments.

• Right-Hand Orientation: Specifically configured for internal threading from the right-hand side, providing stable and predictable cutting action.
• Internal Threading Capability: Engineered to create accurate internal threads with reliable seating of inserts.
• 400 mm Overall Length (OAL): Extended reach to access deep holes and long bores without frequent workpiece repositioning.
• 27IR Insert Interface: Compatible with 27IR inserts for established threading geometries and tool life.
• 60 mm Shank Size: Robust shank dimension for rigidity and compatibility with standard toolholding systems.
• Screw Clamp Design: Secure clamp mechanism to hold inserts firmly, ensuring repeatable seating and easy replacement.
• 1.5° Helix Angle: Optimizes chip evacuation and reduces cutting forces for smoother threading and longer insert life.

This holder is ideal for machinists who routinely perform internal threading in deep cavities, such as engine housings, connectors, and bushings. The combination of long reach, robust support, and a precise clamp system helps achieve clean, consistent thread profiles with fewer passes. Its right-hand orientation and standard insert interface support real-world workflows in automotive, aerospace, and general manufacturing environments where reliability matters.