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Ordered some in .100" thick. I have the HT info from the maker but surely there is good advice from those who have actually HT the stuff. ie : What would be the best hardness for a folder blade of that thickness? What is your advice on the HT?

Thanks a lot!

Thank you. Also, I have a very slight warp. Shall I try to correct it AFTER the one hour session?

440c folder blade I hardened, quenched, and cryo. Then had a family emergency and was not able to temper after the cryo. May I delay the Temper a few days without any ill effect?

I really like the Presidio blade, not so much the handle. I kicked this around a long time before I took the leap, because it meant re shaping the handle a lot. I wanted to fix the rather large handle to make it more pocketable, plus the "file like" aluminum scales hurt my hands. This is a G10...

That is what I will do, thank you.

Planing a folder, 3 1/4" long, 3/32" thick, flat ground, light duty. Would like it to take a very sharp edge. How hard do you sugest I take it? thanks

Can CPM M4 be obtained in small quantities?......and if so, where?

Thanks! No foil then! Of course i'm going to "test run" a couple of 01 pieces. I would like to see a piece done unprotected before I do a real blade.

I have some 3/32" thick 01 steel on the way, for folder knives. Should I wrap them in the foil, considering I'm going to oil quinch? I know there is no way I can unwrap before quinching. Grinding before HT? Yes? NO?

I want to thank you all for the help you've given me. I've ask a lot of questions and the answers were all helpful. My kiln came in and I'm happy with it. I've actually done two blades. To get the feel of things, did some test HT with some blanks of steel. Most helpful! My folder blades came...

I got it! Thank You! I can do this!

I just want them for STOPS and LINERS.

I didn't find anything on these steels.

Now I have a kiln on the way, I'm thinking ahead. I've always used titanium as my lock springs material, because you don't have to heat treat it. I see suppliers have SS sheets and rods, can I heat treat these(see above)? What temps/hold and temper?

Thank you very much, just what I wanted to hear.

Usually CPM154, 154CM, or 440C. 1/8" or .100" 3/32" folder blades!

I've sent my blades to the hardeners for a long time with the blades about 60 - 70 % complete. Never a warped blade. Now that I will be hardening my own soon, the question comes up again. To grind or not to grind.

Glad I checked here first. I almost orderd a manual kiln, got sound advice here, and have controler type on the way as we speak. Thanks Guys.

Thank You! I think the plates I have comming are large enough for two. I will go for one at a time for the first few blades.