I need to switch out my pitman arm, however; the steering set up I have on currently requires the steering knuckles and pitman's arm to be drilled out to a 5/8 hole. Cav Fab(the brand of the steering components), recommends using a Reamer Drill Bit. I used this initially when I installed them myself but I ended up returning the reamer drill bit because I had no use to it, I remember they drilled out without an issue. Now that I need to replace my Pit Man Arm I will have to drill the hole out to a 5/8, My question is will it matter which drill bit I use, the pit arm will be off the vehicle and compressed in a vice when I attempt it. I just don't want to wait the extra week to get the reamer drill bit because now where but online sites sell the bit and my vehicle is going to be in use very soon so that's why I am on a time clench, I appreciate everyone's response, Thank You.