[Franco]

MJ is right, the trick is to drill it out straight. If it wont come out with and easy out you can buy h helicoil kit. You'll have to drill the hole out a little oversize. The supply a bottoming tap in the kit. That a tap that will put threads allmost the whole way down. After you tap it, you install a threaded insert into the hole to bring it back down to the original size. If you get a block of hardwood and drill a hole in it, you can use it as a drill guide buy sliding the bit thru the hole you drilled. Hope it helps you