There are three type chipbreaker (SF,MF,FM) for TNMG insert in stainless steel machining ,do you know how to choose them :

• SF chipbreaker: suitable for finishing in stainless steel machining,with sharp cutting edge which lead to good surface finish.The recommend cutting depth is 0.5mm (0.1-0.8mm)​

• MF chipbreaker: features razor-sharp cutting edges with superior edge toughness compared to SF grade. Suitable for both low and high-speed cutting operations, it delivers superior surface finish quality, making it ideal for semi-finishing and rough machining of stainless steel.The recommend cutting depth is 1.0mm (0.5-3.0mm)which is more recommend in continuous machining.

• FM chipbreaker: maintains excellent cutting edge sharpness while achieving superior edge toughness. Designed exclusively for high-speed cutting​ (minimum cutting speed: 120 m/min). Its greatest advantage is versatility, making it suitable for both continuous and interrupted machining of stainless steel.The recommend cutting depth is 1.0mm (0.5-3.0mm)