Robert Allison wrote:

W. Watson wrote:

I have a hole saw, 2" in diameter that is fastened to a drill bit with
a nut that secures the bit to the cylndrical cutter. How does one get
it apart? The cutter looks like a small tin can with one end missing.
That end has the teeth. The top has a hole for the bit, and two small
holes to either side. I have a suspicion that the two small holes are
for a tool to help unloosen the nut holding the bit.

In the past, I'm sure I used a wrench on the nut and held the cutting
tool with a pliers. Not so easy this time.


The hole saw (the can part) is threaded onto the arbor (the part with
the spiral bit and nut). It must be unscrewed. I usually put a screw
driver thru the side slots and use a wrench on the nut. You could also
put the hole saw in a vice and use a wrench. If you put on some good
leather gloves and hold the hole saw, put a wrench on the nut and tap it
with a hammer, it usually comes loose.

It's made by Vermont American, called a Carbon Hole Saw. Yes, an arbor as you
described it. There are no slide slits, unfortunately. I'm not real comfortable
about putting the can part in the vise in that it might warp the can, although
it seems pretty sturdy. Well, maybe a little oil into the nut and thread. The
two parts are nicely stuck--so far. Back to the bench.

--
Wayne T. Watson (Watson Adventures, Prop., Nevada City, CA)
(121.015 Deg. W, 39.262 Deg. N) GMT-8 hr std. time)
Obz Site: 39° 15' 7" N, 121° 2' 32" W, 2700 feet

"The obscure we see eventually. The completely obvious,
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