Knipex makes quality cutters, or Dremel.
imo, best cutters are bike specific eg. park tool. Knipex / CK cutters are usually for Cu / Al and will blunt if you use on steel too much
Knipex cutters vary in hardness, mine are rated at 64 HRC, I suggest that is more than adequate and possibly more than Park Tool. Where do you read they’re meant for alu?
@M_A_X started
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Knipex makes quality cutters, or Dremel.