Carmex Thread Turning Holder Standard - Internal - Left Hand - 350mm OAL - 22IL Insert - 50 Shank Size MTS Its design combines left-hand spiral

Its design combines left-hand spiral flutes with a right-hand cut and a DIN 8051 B tolerance (ISO H5)

4-flute long-length design with tight tolerance: 4 flutes provide efficient material removal and a cutting diameter tolerance of +0/−0

Carmex Thread Turning Internal Insert - ACME - Right Hand - 16IR16ACMEBMA is a purpose-built tool designed for internal threading on ACME profiles

and surface finishes

you can trust consistent measurements that support reliable fit and function across your projects

Carmex Thread Turning Holder Standard - Internal - Left Hand - 350mm OAL - 22IL Insert - 50 Shank Size MTS Its design combines left-hand spiralThe Carmex Thread Turning Holder Standard Internal, Left Hand is a precision tool holder built for reliable internal threading on CNC lathes and turning centers. With a long reach (350 mm OAL) and a robust 50 mm shank, its designed to deliver accurate, repeatable threads in challenging bores. Left hand orientation: Optimized for left handed internal thread operations, delivering consistent performance in restricted cavities. Insert compatibility: Uses