Broken stud extractor; now what?

[quk@isham-research.demon.co.uk (Phil Payne)]

In message <34E1CBCA.D637B0DB@teleport.com> "Gary G. Erickson" writes:

> > would next go to right hand drill bits - I know people that have
> > had great luck with them - sometimes hard to find.  What I have
> > done when they are flush broken (I don't have right hand bitss)
> 
> I've had one other person suggest the right-hand bits.  I guess I have
> to confess that I don't understand why it would make any difference
> which way the drill is rotating when you cut into the offending stud. 
> For how firmly the stud piece is in there, you're certainly not going to
> just rotate the broken stud out with the drill.

I thought that, too ...

You need a contra-rotating drill, too.  I now use a Makita DA3000D, which 
drills 'backwards' just as fast as it drills 'forwards'.

-- 
 Phil Payne
 Committee Member, UK Audi [ur-]quattro Owners Club