Just don't use too much muscle with the extractor or a tap. If you break one of those off inside the siezed bolt, you'll need to have a machine shop remove them. That's why I head for the Heli-Coil route almost first thing. I've broken enough off too learn my lesson. Also, if the bolt is sticking off of the head some, be sure to grind it flat so it can be properly center puched before drilling,
Scott
Last edited by 48bigtrucks; 06/25/2009 3:38 AM.