Well my copper tube and stick welder deal didn't work. I could get the rod to stick to the drill bit but it was not strong enough. when stroked the slide hammer, it broke away each time. I just couldn't get a decent puddle built down the blind hole. Does anyone know of a shop in the twin cities metro area that does EDM bolt removal. Not much came up on google. I would prefer to not drill into the oil passage below the tip to drive it backwards if I didn't have to. If I did that I would then end up putting a pipe plug in and drilling through it to get the passage size back to what I want. Thanks, Jim