I remember doing this in high school and know it involves heating up the steel item and plunging it into oil but can't remember the finer details.
I've done a quick search but can't find anything here on it.
How hot do I need to heat the steel?
Will any oil do or are some better than others.
I'm making a simple tapping tool and want to give it a black finish and if I remember correctly the oil black finish inhibits rust a bit too.
Thanks
Tony
I've done a quick search but can't find anything here on it.
How hot do I need to heat the steel?
Will any oil do or are some better than others.
I'm making a simple tapping tool and want to give it a black finish and if I remember correctly the oil black finish inhibits rust a bit too.
Thanks
Tony