Sometimes a flat blade screwdriver will fit tight enough to turn one out.........on occasions I have took a small cut off disc and cut a horizontal slot in them and twisted them out....and remember, always try to "tighten" them first. Sometimes that will help brake them loose. Of course if you find a clutch head bit to fit an impact wrench as David said above, a good whack will do wonders....including twisting them off. If that happens, just drill them out.
If all else fails, grind the head off then twist them out.


1937 Chevy Pickup
In the Gallery
1952 Chevy Panel
In the Gallery
More photos
1950 Chevy Coupe
Pictures!

I'd rather walk and carry a Chevy hub cap than ride in a Ferd.
I can explain it to you, but I can't understand it for you smile