ISO carbide application code K20 — Sumitomo
What is the grade designation(s) for ISO carbide application code K20 — Sumitomo?
For ISO carbide application code K20, grade designation(s) is disputed: AC500G EH20Z per romaycorp.com, AC700G AC820P per aceratool.com; manufacturer is Sumitomo, recorded from its source on 2026-08-11.
K20 | R-300 R-400 | UP10H UC6010 AP15TF | GC1020 GC1120 GC3025 GC3020 GC4025 | TX150 T15M T25M T250M TP200 | AC500G EH20Z |
— romaycorp.com, retrieved 2026-08-11
- ISO application code
- K20 verified
- Manufacturer
- Sumitomo our reading
- Grade designation(s)
- AC500G EH20Z sources disagree
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.
Sources disagree
More than one authority states this, and they do not state the same thing. Both are reproduced with the source each came from — deciding between them is yours, not ours.
Grade designation(s)
romaycorp.com says grade designation(s) is AC500G EH20Z, as of 2026-08-11.
K20 | R-300 R-400 | UP10H UC6010 AP15TF | GC1020 GC1120 GC3025 GC3020 GC4025 | TX150 T15M T25M T250M TP200 | AC500G EH20Z |
https://romaycorp.com/charts/carbide-comparison-chart/
aceratool.com says grade designation(s) is AC700G AC820P, as of 2026-08-11.
K20 | AC3125 | GC3215 GC3020 K20W | NC315K | TT1500 | WAK20 | UE6010 | AC700G AC820P |
Sources
- romaycorp.comhttps://romaycorp.com/charts/carbide-comparison-chart/
- aceratool.comhttps://www.aceratool.com/carbide-insert-grades-chart/