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The Timken Latrobe website also has data sheets for their tool steels, so if you're getting tool steels from toolanddie (w/c is from Timken) you should look at the Timken data sheets. As in particular their A2 (or was it D2?) has a different graph in toughness, it says A2 is toughest at around 57HRC whereas Crucible (as well as different knifemakers) says A2 is toughest at 60-61HRC. And I'd appreciate if someone could explain which one we should follow.
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