I'm trying to integrate more hand tools into my projects little by little. I got a brand new set of Ashley Isles chisels, and today I was squaring off the end of a stopped dado and I broke one! When I say broke, I mean about half of the tip (this is a 1-inch chisel) broke off, about 1/8-inch up. Is it wrong to use a good chisel in BB ply? What else could have done wrong?