Hex Tool Steel ?

[Tin Falcon]

Serious question here. Punches and chisels are a common hand tools. Pin punches center punches etc. I have seen these as simple projects in text books and in the HSM magazine. However it seems that tool steels are not sold in small hex size. What is a good alloy to use that is available in say 5/16 hex?? You know the requirements easy to machine and heat treatable.
1018 quenched in motor oil maybe? Yes I looked in Mcmaster Carr catalog.
Suggestions please!!
Tin

 

[tattoomike68]

Allen wrenches are made from good stuff, I know I have a bunch of them so would not miss one gone.

 

[lane]

You cant heat treat 1018 not enough carbon . You can case harden it