How To Drill Hard Steel Video

Hi, Im 27 yrs old and a rokie about drilling metal surfaces.
This weekend I'll try to drill a 5/16" into my jeeps body frame (I'm installing side step bars) I just saw the video and i didnt know that oil could help a lot.
Are there any special steps to drill a hole this big into a jeeps frame (91')?

Greetings,

I need to drill some 1/8th inch holes into 3/4 inch mild steel bar stock with a drill press...I was wondering if there are any extra precautions when drilling through such thick steel?
thank you for the great video and site.

Hello!
First of all, great video! I have a question: I need to drill a hole for a thumb stud into a very hard knife blade (about 57 HRC) and I was wondering if that is even possible with normal gear, like a hand drill or a drill press. If not, do I need some really hardcore machinery, like plasma cutters or water jet cutters?

Hi!! I saw your video and thought it was just what I needed. I am putting together a trampoline for my kids but the holes of the trampoline are smaller than the holes in the poles that hold the mesh enclosure. I assembled the trampoline already so I need to make the holes bigger from 3/8 in to 1/2 in. I am also implementing the emery cloth technique... thanks so much for the tips