Korloy CNMG120412-HM NC3020 Heavy Roughing Steel Insert (10pcs) black nitriding meticulously engineered with a highly

meticulously engineered with a highly stabilized pocket to seat 11ER and 11ERM external right-hand carbide inserts (IC 1/4")

tight radiuses

Please note that indexable carbide 8GR inserts are sold completely separate

Steel Grooving Guide: NC3030 vs

Korloy CNMG120412-HM NC3020 Heavy Roughing Steel Insert (10pcs) black nitriding meticulously engineered with a highlyThe Original Korloy CNMG120412 HM NC3020 (ANSI Standard: CNMG 433) is a powerhouse insert engineered for maximum metal removal rates (MRR) in steel turning. Featuring a robust 1. 2mm (3 64") nose radius, this insert provides the ultimate edge strength required for heavy duty roughing. The NC3020 CVD grade is optimized for high speed wear resistance, making it the perfect choice for high volume production of large carbon and alloy steel components.