Originally Posted by
george wilson
Paul,if your chisels are like cheese,it means they were either not hardened enough to begin with,or were tempered TOO MUCH. If the chisels were not gotten hot enough in the hardening process,tempering would have softened them too much. The last thing you need to do is temper them some more. Tempering is a softening process,to make the steel less brittle and more tough. I'd return the bad chisels if possible. If you try hardening them again,they will warp badly due to the bevels that make more surface area on one side of the chisels.