Carmex Single Long Shank Threading Insert holder - For Carbide External/Internal Threading Inserts - SR0031M30The Carmex Single Long Shank Threading Insert Holder is a precision, long reach tool designed for CNC milling machines to perform external and internal threading with efficiency and accuracy. Its ideal for shops needing extended reach in tight or deep cavities while maintaining reliable threading results with carbide inserts. Long overhang design: Engineered to provide extended reach for challenging threading jobs without compromising rigidity or