Trust me, I thought of this while showering and before Rich's post.
Permit the current plunge cut rule to stand and allow deburring to .250â€.
I'm sure then egine builders are licking their chops with this propsoed rule.
Everyone has excusses why items are not correct, including the engine builders. The SMAC/CRB/BoD should look at this quickly created proposal by good people (no disrespect on anyone) and say, do they have a clue.