The Carmex Gang Thread Turning External Holder (Left Hand, 125mm OAL, 16EL Insert, 20x20 Shank) is a compact, multi-tool solution designed for small automatic machines equipped with a gang-style tooling post. Its left-hand configuration ensures efficient external thread turning in multi-spindle setups, with ER insert compatibility for a broad range of thread forms.

• Left-Hand orientation: Specifically designed for left-handed threading operations on gang tooling posts, ensuring correct tool-path and chip flow.
• External thread turning holder: Dedicated external threading capability within a gang tool arrangement for streamlined multi-tool operations.
• 125 mm Overall Length (OAL): Shorter footprint suited for tight machine bays while maintaining tool rigidity and reach.
• 20 x 20 mm Shank: Square shank size provides a secure, stable mount on standard gang posts and quick-indexing compatibility.
• 16EL insert compatibility: Designed to accept 16EL threading inserts, enabling precise external thread profiles and reliable performance.
• ER insert compatibility: Supports ER-type inserts, broadening the range of pitches, forms, and thread types you can turn.
• Gang tooling efficiency: Mount multiple tools on a single post to maximize uptime, reduce setup time, and improve through-put in multi-spindle applications.

In practical use, this holder is ideal for small automatic lathes and multi-spindle machines where space is at a premium but threading throughput remains critical. The left-hand threading design pairs with ER-compatible inserts to cover common external thread forms, while the 125mm length and 20x20 shank deliver dependable rigidity for consistent thread quality across production runs. This makes it a reliable choice for manufacturers seeking to optimize cycle times, simplify tool setup, and maintain repeatable results on external threading tasks.