I’m to the point in my project where I need to mount some bearings, so I picked-up some skateboard bearings off of Amazon that had a good rating at that weren’t going to break the bank. I only need four, but they were sold in sets of eight, so I guess I have back-ups. The ID on them is 8mm, and after a little research I determined that what I needed was a couple 8mm X 100mm steel dowels. I dropped by our local Fastenal store and though they didn’t have them on hand they were able to get a pair ordered for pick-up in the store two days latter for only $2 each.
Like clockwork (see what I did there?) they called two days later and after paying and jumping back into my van I was able to confirm the fit… and they don’t fit! This can’t be happening! They were oversized and after looking closely at the invoice I noticed that the word “Oversized” even appeared in their description! I didn’t ask for oversized dowels, I asked for 8mm dowels! Shouldn’t this have been mentioned when I ordered them?
So as you can see I had to toss them on the lathe and turn off a small amount to permit the bearing to slide on. If I knew I was going to have to do this I would have walked out the door on Monday with two 3/8” dowel pins.
My next challenge was I would need to mount the bearings in a couple 22mm holes, and wouldn’t you know, that’s not a common size even in European cabinetmaking, so it was back Amazon. I snagged this carbide tipped “Forstner” for less than $6 with free shipping thanks to Prime. And yes, I know these bits aren’t truly Forster bits, but seeing that I’ll be drilling on a drill press and all the holes are square to the face of the board they’ll do just fine.