Will  operation 05 running,Dia 8fl cutter are used for slot roughing,
Dia 8lat cutter is not taking material load and causes tool breakage.
Due to part not clamped rigidly in part outer side, causes minor vibrations, this is also causes for tool breakage.
Due to tool breakage dig mark observed on part.



 done in Dia 4R0.5 end mill. For this more stock
is there and dia4R0.5 cutter is not taking that load and causes tool breakage