The Carmex Polygon Swiss Line Insert - Threading (ISO) - Left Hand (GT25L1.25ISOBLU) is a high‑efficiency, indexable tool designed for Swiss‑type lathes and automatic lathes. It supports ISO threading and left‑hand applications, making it ideal for high‑volume, cost‑effective turning tasks such as external grooving, back/front turning, profiling, thread turning, parting, and general turning.

• Indexable on the machine for quick setup: Inserts can be indexed directly on the machine, reducing handling time and minimizing downtime between cuts.
• Grounded cutting edges for precise, repeatable results: Precision-ground edges deliver consistent geometry for reliable thread turning and superior surface finish.
• Coated holders provide abrasion resistance: Durable coatings on the holders resist wear in demanding Swiss‑type operations, extending tool life and reducing replacement costs.

This combination helps you increase production throughput, maintain tighter tolerances on ISO threads, and simplify tooling management on Swiss machines. It’s a dependable choice for professionals who value consistent performance, reduced setup time, and longer tool life in busy turning environments.