Hi guys....
I have been asked by a mate at a hire company to re-shapen and harden all of their jackhammer bits and chisels.
I did a few using a big bench grinder and then heated them to cherry red and quenched them in oil and finally gave them a buff to remove the soot from the quenching process........so far so good.........
Am I on the right track???, I do not seem to be able to find any info anywhere and the correct way to do these things, can anyone here help point me in the right direction??
Cheers
Steve