The Carmex Thread Turning Holder Standard is a precision internal threading solution built for right conditions where left-hand internal threads are required. Designed to pair with U-Type inserts, it delivers dependable performance in deep bore operations and challenging assemblies.

• Overall length: 250 mm overall length (OAL) for extended reach into deep bores and hard-to-access threads.
• Handedness: Left-hand threading capability to handle specific internal thread applications with consistency.
• Shank size: 32 mm shank size for secure mounting in standard tool holders and compatible setups.
• Insert compatibility: Accepts 27IL inserts and is designed to work with U-Type inserts for a secure, precise fit.
• Clamping system: Screw clamp design ensures repeatable insert seating and quick, reliable tool changes.
• Helix angle: 1.5° helix angle optimizes chip evacuation and reduces cutting forces for smoother threading.

With a dedicated internal threading capability, this holder helps you achieve clean, accurate internal threads in challenging bores while maintaining stable support and repeatable results. The combination of long reach, secure screw-clamp seating, and the 1.5° helix geometry translates to better chip control, reduced tool wear, and a faster setup for recurring internal-threading tasks. Ideal for precision workshops and manufacturing environments where reliable internal threads and compatibility with U-Type inserts are essential.