Thread insert CNMG120404/08/12-PM machining steel, stainless steel cast iron CNMG120404/08/12-PM turning insert is well applied to workpiece steel, stainless steel, cast iron and it can work mild or high hardness workpiece HRC30-45,HRC45-60 beside, it be alternative of finishing, semi-finishing, rough machining. Coating color: Copper color, Yellow, Blackish. Standard size specification PVD Coating Hardness HRC30-45, HRC45-60 Application Scope- Steel, Stainless steel …