Carmex Thread Turning Holder Standard - Internal - Right Hand - 350mm OAL - 33UIR Insert - 50 Shank Size Boring Bar Blank 5 mm round shank support:

5 mm round shank support: Enables use with small-diameter tools

then progressively advance through the second and bottom leads for a clean finish

and improve chip flow for smoother drilling and better surface finish

it helps improve surface finish quality

Carmex Thread Turning Holder Standard - Internal - Right Hand - 350mm OAL - 33UIR Insert - 50 Shank Size Boring Bar Blank 5 mm round shank support:The Carmex Thread Turning Holder Standard for Internal threading is a purpose built tool holder designed for precise internal threads in machining and manufacturing. Built for right hand internal threading, it offers a 350 mm OAL and 50 Shank Size for deep bore reach and stable guidance, with secure compatibility for U Type inserts. Handedness: Right hand internal threading holder designed for clockwise internal threads. Overall Length (OAL): 350 mm,