Track pins

[ron]

Case hardening is very easy do do, there are lots of products on the market,there is one called Casenite its just a powder you get the item cherry red roll it in the powder then bring it back to cherry red and the job is done, there are lots of different ones on the market, just ask at any good tool shop, I have used it to harden all kinds of dies and its perfect for the job, just get a tin of it and follow the directions,
Regards Ron