Carmex Thread Turning Holder Top Clamp - Internal - Left Hand - 170mm OAL - 16IL Insert - 20 Shank Size

Engineered for precise internal threading, the Carmex Top Clamp Thread Turning Holder provides dependable performance for left-hand applications. With a 170 mm overall length and a 20 mm shank, it’s designed to accept 16IL inserts for robust, repeatable thread cuts in demanding machining environments.

• Top clamp design: enhances rigidity and stability during threading, helping maintain accurate thread form at high speeds.
• Internal threading capability: purpose-built for clean, consistent internal threads in a compact form factor.
• Left-hand compatibility: optimized for left-handed threading without tool changes or adapters.
• Insert compatibility: accepts 16IL inserts; compatible with IR and IL insert styles for versatile threading options.
• Overall length: 170 mm (OAL) to reach deep holes and tight cavities with reliable support.
• Shank size: 20 mm, designed for secure mounting in standard toolholders.

Users gain repeatable thread quality, increased rigidity, and reduced vibration, translating to better surface finish and fewer reworks. The LH capability combined with IR/IL insert compatibility makes it a flexible choice for production runs that require different thread forms or material hardness. The robust construction withstands high-speed machining, delivering long tool life and consistent performance across jobs—from automotive components to engineered fittings—where precise internal threads are critical.