The Carmex Swiss Line Insert - Threading (55°) - Left Hand, GT19LG55BLU, is a precision indexable cutting tool designed for Swiss-type and automatic lathes. With a 55° left-hand threading geometry, it delivers reliable external thread turning and related turning tasks in high‑volume production environments. Built to pair with coated holders, this insert helps optimize throughput on demanding threading and turning workflows.

• Grounded cutting edges: Delivers clean, consistent cuts and a predictable surface finish, helping reduce rework and extend insert life.
• In-machine indexing: Lets you index the insert directly on the machine, enabling quick tool-life extension without removing the holder or retooling setups.
• Coated holders for abrasion resistance: Provides enhanced wear and heat resistance, delivering longer tool life in tough turning and threading applications.

Designed for versatile, high‑efficiency Swiss machining, this insert helps streamline your workflow by delivering repeatable threading quality, minimizing downtime, and reducing overall machining costs. It supports reliable performance across threading, grooving, profiling, and general turning tasks, giving operators and shop managers a confident choice for demanding production environments.