The next one is simply drilling holes in flat bar stock. Again I used 1/8" x 1" x 6" piece of flat bar from HD.
As before, you cut your stock to be a little bigger than what the finished size will be.
You slightly taper one end, insert it, then drive through with a hammer.
PRO
It's easy to make and use. Portable. Quick to use. Dirt cheap.
CON
The driving force of the hammer is basically forcing the stock to scrape to size. You have to make sure to hammer perpendicular or risk snapping off the piece. Even selecting a good even grain piece will come out rough. Sometimes sort of chewed up. Then the urge is to sand it and the diameter changes. This may be okay for dowel joinery but not hinge work.
Should I do a post on it? Think anyone would be interested? I'm thinking it would make a nice plane adjusting hammer. Put a pipe cap on one end for tapping the iron.
Oldtool...I did that! It works great but way too weighty and heavy for adjusting planes. However I did go and do this same concept with a small brass tee and it works great for a plane tapping hammer. I just went to get it and can't find it to show you. Guess I'll be making another one. 🙂