The Carmex Polygon Swiss Line Insert for Grooving, Left Hand (GD25LW14T33BLU) is a purpose-built indexable tool designed for Swiss-type machines and automatic lathes. It supports high‑volume external grooving, back/front turning, profiling, thread turning, parting, and general turning applications, delivering repeatable, precise results across a wide range of materials.

Designed in a left‑hand orientation with GD25 geometry, this insert combines grounded cutting edges with a robust coated holder to withstand demanding production environments. It enables fast, reliable setup and long tool life, helping you maximize uptime in tight-tolerance Swiss machining.

• Grounded cutting edges: Deliver precise, stable cuts from the first pass, reducing chatter, improving surface finish, and extending tool life for consistent Grooving and turning results.
• Inserts index directly on the machine: Enables quick changeovers without removing the toolholder, keeping cycle times tight and reducing downtime on high‑volume runs.
• Coated holders provide abrasion resistance: Protect against heat and wear in demanding applications, extending tool life and lowering maintenance in grooving and profiling tasks.

By combining Swiss-ready geometry with reliable indexing and durable tooling, this insert helps you improve throughput, part quality, and overall productivity. The left‑hand orientation, grounded edges, and abrasion‑resistant coatings work together to minimize scrap and downtime, delivering dependable performance across shifts and materials for milled, threaded, and profiling operations on Swiss lathes and automated turning centers.