Methodology guide
Clean cut vs severance and when to stop shopping this ladder.
Calculator
Plasma cutter size by metal thickness
Enter mild-steel clean-cut thickness (in). Get a 40 / 50 / 65 A class or NO_MATCH. Size to routine clean cuts; PPE; verify air and consumables on the live listing.
Result
Worked checks: 0.25 in → 40 · 0.48 in → 50 · 0.55 in → 65 · 0.75 in → NO_MATCH. classLbs uses amp class ids for CTA matching.
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