Seco Tools AB Carboloy RNMG 64-MR4 370 turning carbide insert is a turning insert from Seco's Carboloy line, identified by the RNMG family designation, MR4 chipbreaker, and Grade 370, intended for use in compatible RNMG tool holders. MR4 chipbreaker geometry provides predictable chip control during turning cuts, helping to manage chips and stabilize cutting conditions across a range of workpieces. The Grade 370 designation refers to the specific Carboloy insert grade used for this model, reflecting Seco's formulation for wear resistance and performance in turning operations.
