hmm, there might be an Ace near the Lowes in my area, I guess I’ll check that place out as well, hopefully they’ll have some…
also, does anyone know where I can find a 20mm hole saw locally? or should I just get a stepping drill bit? I don’t really understand how to use those… you just drill until the step you want is reached?
Im actually glad I found this thread on drill bit sizes because I’m goin through a problem myself.
Im in the process of building my stick and I bought a 30mm hole saw(forstner) for 30mm seimitsu button type. The thing I did not know about the buttons was that it was a screw-in type, and I made the panel out of plexi and mdf behorehand. So what I found out in the end was that the holes I cut in were too large. Probably a smaller hole saw?
30mm hole saw is not readily available at big stores like Home Depot or Lowes as you mentioned (metric sizing in America is generally hard to find). I would still try to get a 30 mm hole saw because sanding the rest of the way with sand paper takes a while (unless you already have dremel) and the hole will not be as round as with a hole saw.
I recently bought a 30mm hole saw (DeWalt, good brand) myself and I have measured the holes I cut with it and holes are 30mm + 0.5mm so the one I bought cuts very true to its size (i used a micrometer to measure so its very accurate).
I think holesaws are the best way to go for me. I have a 30mm one that makes the holes perfect in size, I just sand a little bit on the edges to smooth it out. 30mm is the size of a quarter, sometimes bigger stores may not have them in the tools section, but might have them in the hobby section. My local hardware store did, anyway.
I have english sized drill bits. If you use 1 1/8" for the 30mm it works fine, and if you use 15/16 for the 24mm that will work. You might need to get a round file or a fine tooth round wood rasp to widen the holes a bit, but they will work. Plus this gives you a little lee way in “nudging” the hole in a certain direction for one mm in case you placed the hole a little off or you where slightly off center, and a chance to take the burr off the edges.