Slant 6 timing chain lubrication?

I was wondering how one would drill a .040 hole without breaking a tiny drill bit! This is a great idea~ argh, I wasn't going to do , but now I just may~ ;) :lol:

"So how cheap & nasty is cheap & nasty gonna be? Before I answer that, here's my first mod. See that hole in the middle of the main oil passage plug? It's a little big, ain't it? That's cause it's a beeotch to drill a .040" hole without the bit breaking. So, my solution is to tap it to 1/4 x 32 UNF and screw a Holley .040" main jet into it. Problem solved and the timing chain now has pressurized oil."