Carmex Thread Turning Holder 3.5 Helix Angle - Internal - Right Hand - 170mm OAL - 16IR Insert - 20 Shank Size Shrink Fit Holders secure mounting in standard milling

secure mounting in standard milling centers

low-friction DLC coating

1 mm minimum diameter and 15 mm reach enable threading in tight bores and restricted spaces

and the tolerance aligns with DIN 212‑B style specifications for consistent results

built for mold and die work where precision and productivity matter

Carmex Thread Turning Holder 3.5 Helix Angle - Internal - Right Hand - 170mm OAL - 16IR Insert - 20 Shank Size Shrink Fit Holders secure mounting in standard millingCarmex Internal Thread Turning Holder with a 3. 5 helix angle is a precision tool designed for machinists who need dependable internal threading on cylindrical parts. Built for right hand internal threads, it delivers clean, repeatable results in automotive, aerospace, and general manufacturing applications. 3. 5 helix angle: Optimizes chip flow and reduces cutting forces during internal threading to improve surface finish and tool life. Internal