Tiny Hole Saw

Something like the following might work:

Lee Valley

-- 温故知新

I think that makeing a hole saw with a piece of tubing is the right way to get the tool. Next, to position the saw, overlay a piece of material with a hole the correct dia. and clamp it down. Then drill.

Ptweedy :
I have used a simular way of duing it , thow instead of a saw made of tube
I used a normale holesaw for drills and did take the center drill out of the holesaw

I have seen a tubesaw used in a brace , he make the first copple of rounds backward
simular to when when you start anyother sawcuting
but how accurate it was I don´t know , I did looked at some distance

well get us updated with your little project there :-)
maybee you will come up with another solution

Dennis

Would a plug cutter like Hobomonk suggested work?

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In theory, you could do this with a router and a circular template that router sets in. You would “walk” the router around the circular template. This would work a lot easier if you had a round bottom on your router.

-- Rich, Cedar Rapids, IA - I'm a woodworker. I don't create beauty, I reveal it.

Thanks for the feedback, everyone.

I must not have explained it very well. Plug cutters leave about a .125” gap. The smallest router bit I have is .125”, too. The slot I need is very narrow – about .014” (a .222” post in a .25” hole). I haven’t tried it, but a drinking straw might fit tightly in the round slot I’m trying to cut.

Maybe I should have started out by saying what was going in the slot: inking nibs.

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Why not drill the Hole, then fill in with a dowel (Sanded down of course)

You could even leave a half moon shape if you wanted

Sorry Bentlyj Great minds etc ;)

-- Pat - Worker of Wood, Collector of Tools, Father of one

I had thought of gluing in a dowel, and it may come to that. But I’d prefer to saw the hole because I want to make several of these, so fewer steps is better (hole saw vs. drill, turn, glue). Also, it seems like it would be hard to avoid getting glue on the walls of the slot when inserting the dowel.

-- http://www.peteroxley.com -- http://north40studios.etsy.com --

could try to “modify” a plug cutter. either by grinding down each leg one at a time, or possibly with diamond files while it’s spinning slowly on the drill press or lathe. might be a dremel tool thin enough too?

-- I am always doing what I cannot do yet, in order to learn how to do it. - Van Gogh -- http://blanchardcreative.etsy.com -- http://snbcreative.wordpress.com/

I’m not positive, but I think this would work. The slot it leaves might be a tad big, but it wouldn’t be awful sloppy like a plug maker http://www.rockler.com/product.cfm?page=2354&filter=screw%20remover

These might work.
http://www.woodcraft.com/Product/2000983/2010/Screw-Extractor-516.aspx

-- A mind, like a home, is furnished by its owner

Maybe silver-solder an older inking nib to a 0.222” metal dowel, nib pointing up. Leave the butt end sticking out past the metal dowel. Shape the butt end into a cutter like:

Run it in a drill press real fast and take light cuts.

-- Backer boards, stop blocks, build oversized, and never buy a hand plane--

Dependiing on what you are trying to cut and how hard it is, a .223 Remington case chucked up in a drill press with teeth filed on it should cut about what you want. The cheap ammo even has steel casings.

-- "some old things are lovely, warm still with life ... of the forgotten men who made them." - D.H. Lawrence

Great ideas, everyone! I’m going to give a few of them a try and I’ll let you know how it works out.

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