K20

For K20, manufacturer is Toshiba; grade designation(s) is T1015 T5020 AH120 J740, recorded from its source on 2026-08-11.

ISO application code: K20 verified
Manufacturer: Toshiba our reading
Grade designation(s): T1015 T5020 AH120 J740 verified

Sourceromaycorp.com

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

K20 | R-300 R-400 | UP10H UC6010 AP15TF | GC1020 GC1120 GC3025 GC3020 GC4025 | TX150 T15M T25M T250M TP200 | AC500G EH20Z | T1015 T5020 AH120 J740 |

— 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.