hmm

[Guldan]

Note: 440c is for BLADES, not for frame locks...

ok, will make next lock from 420.

 

[Reggie Barker]

I make springs out of 440c
Reggie

 

[Guldan]

how do you heat treat it?

 

[Chiro75]

Too bad. COOL folder, though. Redo it in Ti and you have a winner! Looks a lot like a Sean Perkins friction folder I have. I like that a lot.

 

[howiesatwork]

Maybe a little higher on the tempering temp, and some relief grind to thin the lockbar. It should work.