Hand Tools

Re: One more picture of a special knife

David Bassett

I attended a plane makers panel at WIA 2016 and one of the questions ask was what steel do you use. Thomas L-N said they use A2 because that's what their heat treatment sub-contractor is best at treating. (When ask why they don't still use, I think it was, O1 he answered the guy that heat treated that had shutdown his operation and that's why they switched.) I'm sure their analysis was more complex and thorough, but the summary is they use what they can heat treat best.

(In every other case the answers were O1 and because it is the only steel they could reliably heat treat. All the other makers were smaller operations than L-N.)

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