The Carmex Thread Turning Holder Standard – Internal, Right Hand is a precision tool holder designed for internal threading applications. Built for machinists and shops that demand reliable, repeatable internal threads, it combines a long reach with secure insert seating to tackle deep bore operations.

• Right-Hand Thread Turning Holder: Specifically configured for internal threading with right-hand orientation, ensuring correct engagement and cutting direction.
• Internal U-Type Compatibility: Designed to pair with U-Type inserts for a secure, precise fit and straightforward tool setup.
• Overall Length: 300 mm (OAL) to reach into deep bores and cavities with consistency.
• Insert Type: Uses a 27UIR insert, optimized for stable internal threading performance.
• Shank Size: 40 mm shank for robust support and compatibility with standard tooling systems.
• Clamp Mechanism: Screw clamp design provides secure, repeatable seating of the insert for dependable results.
• Helix Angle: Typically engineered with a 1.5° helix angle to enhance chip evacuation and reduce cutting forces during threading.

This holder is ideal for producing clean, accurate internal threads in deep holes, housings, and cavities across mechanical, hydraulic, and automotive components. The combination of a long 300 mm reach, a sturdy 40 mm shank, and a compatible 27UIR insert minimizes setup time while delivering consistent thread quality. Use cases include tapping internal threads in bearing housings, valve bodies, and threaded bores where precision and reliability matter. The Carmex internal threading system supports efficient chip control and repeatable performance, helping you complete critical threaded features with confidence.