Korloy MGMN800-M NC3020 8mm Double-Ended Heavy-Duty Steel Grooving Insert (10pcs) CNMG120404-EM YBG202 Performance variables and micro-structural tolerances

Performance variables and micro-structural tolerances are strictly audited and validated by the Sumitomo Electric Hardmetal Engineering Laboratories (Test Protocol: SEI-CVD-AC700G-2026):

Excellent for finishing alloy steels

specifically alloyed and unalloyed steels

border-left: 6px solid #47479F

Use our official engineering matrix to guide your setup:

Korloy MGMN800-M NC3020 8mm Double-Ended Heavy-Duty Steel Grooving Insert (10pcs) CNMG120404-EM YBG202 Performance variables and micro-structural tolerancesThe Original Korloy MGMN800 M NC3020 is the heavyweight champion of the MGMN range, featuring an 8. 0mm Double Ended blade engineered for Massive Metal Removal Rates. When parting off the largest industrial shafts or creating wide, deep grooves in high tensile steel, the 8. 0mm width provides the maximum possible structural stability. The NC3020 CVD grade is the high efficiency specialist, designed to withstand the intense friction and heat generated