Passin Thru wrote:
I have drilled out a lot of bolts. Get a 5/16 EZ out (or larger), some penetrating oil and spray the penetrant on. Wait 24 hrs but keep wetting it down every time you can. You may even take a torch, heat the bolt and spray it with oil. Use a set of step drills, start small and work up to a them hole big enough to drive the EZ out in with a ballpeen. The tricky part is to have a wrench that fits the EZ out as it usually has to be really square to it or it will shear off the EZ out. Carefully put pressure on it and keep adding penetrating oil and waiting. The problem is usually clearance to get the tools in there. Search EZ outs on youtube.
You think the EZ Out will hold under that much pressure? That's my only hesitation... Once I start drilling I'm all in. I believe the head of the anode rod is aluminum. It about has to be to have rounded off so easy with a 6 point socket.