i thought they might be 02 or 01 tool steel grade but I'm not sure because there are various different types and sizes made from different material. plus the year matters as well apparently from what I've read. but I'm in going to make a scribe from an old car lug wrench and some tongs so we'll see how it goes

Welcome aboard from 7500' in SE Wyoming.  Glad to have you.

I don't know exactly the types of steels that various manufacturers use for lug wrenches but I have found that when I have made blades from lug wrenches it that has heat treated well.  I would genderally characterize lug srenches as being "tough" steel rather than "hard" steel.  It should work well as a scribe.  I suggest taking a small piece (a "coupon") and experimenting with hardening mediums (oil, water, etc.) and how it tempers.

"By hammer and hand all arts do stand."

On 3/26/2023 at 1:35 PM, RobIronside1776 said:

I'm in going to make a scribe from an old car lug wrench and some tongs so we'll see how it goes

Did you ever get around to making these? It would matter where in the world you are located as steel in say the UK, Europe, Australia, China or Tasmania would no doubt be made from different steel than the US.