Who cares if the drill bits fit? You are just going to drill them out and the result will be an irreparable MacBook no matter whether the size of the holes! A 1/2" bit would easily do the job, but 1/8" bit would likely be faster and easier.
The MBP is already a dead issue, but under any circumstances, drilling out the screws would ruin only the case back, not the entire computer. (And if you're really careful, you can save the case back.)
