The 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. It’s 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 accuracy.
• Internal coolant bore: Integrated coolant channel helps keep inserts cool, improving insert life and chip evacuation.
• Length options: Overall holder length up to 210 mm (metric versions) / 6 inches (inch versions) for flexible setups.
• Indexable carbide inserts compatibility: Works with carbide external and internal threading inserts, leveraging multi-tooth geometry for higher cutting speeds.
• Model: SR0031M30
• Application and process: Optimized for threading on CNC mills using helical interpolation programs, enabling efficient thread milling over traditional tapping.
• Machining notes: When machining long overhangs, reduce cutting speed and feed rate by 20–40% depending on workpiece material, thread pitch, and amount of overhang.

This holder delivers tangible productivity gains by enabling rapid, accurate thread milling with a cost-effective tooling path. The combination of a long reach, coolant-assisted operation, and compatibility with carbide inserts helps reduce tooling costs while expanding the range of parts you can thread in a single setup. It’s a dependable choice for shops tackling deep threads, long shafts, or recessed features where a standard-length holder would struggle.