broke valve cover bolt

I agree with the awl advice. Try and walk it out using an awl (or small, pointed punch...) and SLOWLY walk it around with a LIGHT hammer. Between the fact that it's a small bolt and not deep you *should* be OK. Worst comes to worst, center-punch it dead center and drill with the left handed bit. Use an easy-out as a LAST resort.

Easy-out's are anything but at times.... :angry7: