M20

For M20, manufacturer is Romay; grade designation(s) is R-300, recorded from its source on 2026-08-11.

ISO application code: M20 verified
Manufacturer: Romay our reading
Grade designation(s): R-300 verified

Verified2026-08-11

Review by2028-08-10

DatasetCarbide insert grade cross-reference by ISO application group and manufacturer

Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.

What the source says

M20 | R-300 |

— romaycorp.com, retrieved 2026-08-11

Source

romaycorp.comhttps://romaycorp.com/charts/carbide-comparison-chart/

Last verified against source: 2026-08-11. Due for re-check by 2028-08-10. This page as Markdown · OKF bundle · full dataset as JSON.