I'm looking for a high quality 1/2" drill bit to simultaneously drill through a 6x6 cedar post and embedded 1/4" carbon steel knife plate. This is for a post to base foundation anchor using 1/2" steel pins. I might end up pre drilling wood and knife plates separately but the matching holes must be perfect. Seems "easier" to do it all at once. It's tough to drill down through all the bit choices out there (sorry for the pun) so any help in narrowing choices would be greatly appreciated.