16I/ER2.0TR / 22ER6.0TR Shape T Thread insert machining steel stainless steel cast iron 16I/ER2.0TR / 22ER6.0TR thread insert is well applied to workpiece steel, stainless steel, and it can work high hardness workpiece HRC30-45, beside, it be alternative of finishing, semi-finishing, rough machining. Coating color: Copper color, Yellow, Blackish. Standard size specification PVD Coating Hardness HRC30-45 Application Scope- Steel, Stainless …