Designed for precision internal threading, the Carmex Thread Turning Holder Standard provides a reliable, long-reach solution for right-hand internal threads in deep cavities and through-holes. Built to work with U-Type inserts, it delivers secure alignment and consistent results across demanding machining tasks.

• Overall length: 350 mm reach to access deep features and hard-to-reach internal threads
• Orientation: Right-hand internal threading holder optimized for producing right-hand internal threads
• Shank size: 50 mm shank for robust stability and compatibility with standard tool setups
• Insert compatibility: Designed to accept a 27UIR insert for precise internal thread profiles
• Holder design: U-Type holder ensures secure seating and accurate alignment with U-Type inserts
• Helix angle: 1.5° helix to enhance chip evacuation and reduce cutting forces for smoother threading

The combination of long reach and precise internal threading geometry helps you produce accurate threads consistently, even in challenging cavities. The 50 mm shank provides rigidity during heavier cuts, while the 350 mm length offers the clearance needed for deep holes. Pairing the 27UIR insert with a U-Type holder minimizes setup time and ensures repeatable alignment, reducing runout and improving surface finish. The 1.5° helix angle supports efficient chip evacuation, lowers heat buildup, and reduces tool wear—making this holder well-suited for automotive, aerospace, mold making, and general precision threading tasks.