Carmex Swiss Line G6 Insert - Threading (Partial 60°) Cutting Edge - Left Hand - G6TLA60BLUThese partial profile threading inserts were designed for machining external threads. Like all G6 inserts, these inserts are compatible with a wide variety of diameters: From very small, thin walled applications to diameters as large as 60 mm. The six cutting edges help to achieve high productivity, while maintaining an outstanding cost effectiveness ratio.