"Nick Huckaby" wrote in message

The problem is that a few of the green see-thru chisels have 10-15 percent
chips gone from its plastic striking surface. Since that day I am more
careful.
I'm not sure whether the cause is the a 12-oz. iron hammer or the way I
pound
them. What's the best way to repair these tool?

Thanks

Toss them and buy a good set. Hone them before use.