Carmex Thread Turning Holder 3.5 Helix Angle - Internal - Right Hand - 170mm OAL - 16IR Insert - 20 Shank Size Shrink Fit Holders DIN 8051 B tolerance (D

DIN 8051 B tolerance (D = ISO H5): Ensures precise hole finish and interchangeability across production runs

and robust carbide design supports reliable results across varying materials and depths

is built for demanding metalworking tasks

and clean the hole before assembly

long‑lasting construction: Hardened steel construction provides superior wear resistance and stable measurements in busy environments

Carmex Thread Turning Holder 3.5 Helix Angle - Internal - Right Hand - 170mm OAL - 16IR Insert - 20 Shank Size Shrink Fit Holders DIN 8051 B tolerance (DCarmex 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