Re: Using left-handed drill bits - A QUESTION ????

Posted by Harold Hubbard on September 04, 2001 at 04:23:48 from (209.198.117.155):

In Reply to: Using left-handed drill bits - A QUESTION ???? posted by Alberta Mike on September 03, 2001 at 07:26:20:

Seems like there are as many ways of removing broken bolts as there are mechanics. One thing that has helped me a lot over the years, even with bolts that are not yet broken, is to wind up and give it a good shot with a hammer, like you were trying to drive it out the back side of the hole. Much more than one blow will probably swell it so it will come out harder, but the first one seems to break up the rust or whatever else is holding it. Another thing that works well if the hole goes all the way through, is a cutting torch. Get a hole drilled completely throught the bolt, then cut a slot out to the edge. You get only one chance here, the rust in the threads insulates the threads in the hole and protects them from being cut. This works best on bigger bolts in cast iron or steel, I have never tried it in aluminum, don't think I want to.

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