The Carmex Single Long Shank Threading Insert Holder is a precision tool designed for CNC milling operators, engineers, and shops that need dependable threading on deep or hard-to-reach features. It accepts carbide external and internal threading inserts, providing a stable, rigid support that helps you achieve accurate thread profiles in a single setup. The long shank is ideal for long overhangs, giving you productive reach without sacrificing rigidity.

This holder is built to maximize productivity in threading operations. It features an internal coolant bore that delivers coolant directly to the cutting edge, reducing heat, extending insert life, and improving thread quality. With a reach of up to 210 mm in metric versions (or 6 inches in inch versions), it enables efficient machining of long threads on complex parts while keeping cycle times favorable.

• Extended reach for long overhangs: Long shank design supports deep, demanding thread applications with up to 210 mm (metric) or 6 in (inch) overall length while maintaining stability and accuracy.
• Internal coolant bore for improved cooling: Direct coolant delivery to the cutting edge reduces heat, enhances tool life, and promotes cleaner, more precise threads.
• Cost-effective threading with carbide inserts: Optimized for multi-tooth carbide inserts, enabling higher cutting speeds and lower tooling costs compared with traditional taps and dies.

When machining long overhangs, reduce cutting speed and feed rate by 20–40% (exact value depends on workpiece material, thread pitch, and amount of overhang). This approach helps protect the tool, maintain thread quality, and minimize wear, ensuring reliable performance across an array of threading tasks.