Carmex Polygon Swiss Line Insert - Back Turning - Left Hand - GB25LA30R10BLU FHH 71mm is a precision finishing

71mm is a precision finishing tool designed to bring bores to exact size with stability and repeatable results

and more consistent finishes across challenging geometries

accurate bores with minimal runout thanks to the precise HSS (M2) composition and ISO H5 tolerance

enabling tight size control with ISO H5 tolerance

The Carmex MTB Thread Mills are an excellent choice for precision manufacturing environments where through-coolant threading

Carmex Polygon Swiss Line Insert - Back Turning - Left Hand - GB25LA30R10BLU FHH 71mm is a precision finishingThe Carmex Polygon Swiss Line Insert is a robust, left hand back turning indexable insert designed for Swiss type machines and automatic lathes, and its built to fit GB25LA30R10BLU holders for secure, reliable mounting. It enables high volume, cost efficient turning across external grooving, back turning, profiling, threading, parting, and general turning tasks, making it a versatile choice for shops that run both small batches and high volume