I'm trying to find a 37/64 drill bit for my 5/8-18 tap. I need to drill out my flat top knuckles and re-tap them to the 5/8 for new studs, but I can't find a 37/64 bit anywhere....not even the places that sell the dang taps. I only need to drill 6 holes into cast iron with it. Any suggestions?
Thanks,
Greg

just found one at "grainger.com". $8.67 plus xx shipping. Westward manufacturer. I'm going to give that one a try, it doesn't have to last long, and it's only opening up some holes that are already drilled. Now I'll see what else I can spend money on while I'm on that site....

Try these folks out, they have just about everything.
http://www.rutlandtool.com/

dc