Will do on the rounding of the edges. I was sure it was enough, they ramp down quite a bit from the original i.d. of 1/2". Will take a better pic tomorrow after some finesse work has been done. As for the welds,counter drilled hole 3/4" deep and pressed chamfered round stock in, then tig welded, no post heat. time will judge, will report back with results and any failure. Thank you !!