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Author Topic: circle cutter  (Read 2184 times)

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Offline closekutt

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circle cutter
« on: December 27, 2013, 11:23:31 AM »
Old circle cutter,,,what was it used for making and or attaching to...
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Offline rusty

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Re: circle cutter
« Reply #1 on: December 27, 2013, 11:28:39 AM »
How odd...

Very heavy...my guess would be for cutting holes in sheet metal (like electric boxes  or duct work etc)

Or making washers, it only seems to cut certain sizes....
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Offline oldgoaly

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Re: circle cutter
« Reply #2 on: December 27, 2013, 01:04:42 PM »
my guess is it cuts rubber sheet (red) for boiler flanges, cutter wheels look to fragile for sheet metal.
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Offline keykeeper

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Re: circle cutter
« Reply #3 on: December 27, 2013, 05:37:37 PM »
Wish the pic were bigger. They don't enlarge for me. Can't make out any details.
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Offline oldtools

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Re: circle cutter
« Reply #4 on: December 28, 2013, 10:01:45 PM »
How do you change sizes?  change rings? do the cutters move to different sizes?
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Offline jpalex

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Re: circle cutter
« Reply #5 on: December 29, 2013, 10:38:09 AM »
Without a good close up, it looks to me like I see two cutter wheels like on a tubing cutter on each side. I bet you adjust those to the diameter of hole you need, drill a hole for the vertical bolt in the sheet metal, nut it up and turn away to cut the hole size you're chosen. Wonder how well that works, lot of pressure on the wheels at an angle!
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Offline mikeswrenches

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Re: circle cutter
« Reply #6 on: December 29, 2013, 11:32:59 AM »
I think this was made by Greenlee for enlarging holes.  A large knock-out hole could be enlarged by putting the existing hole over one of the "pilots" and turning the wheels.  I saw a picture of one of these, but can't remember where.

Mike
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Offline OilyRascal

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Re: circle cutter
« Reply #7 on: December 31, 2013, 01:15:09 AM »
Hard to get a perspective of size from the pictures, but that would be one hell of a "knock-out" hole by my eye.
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Offline Chillylulu

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Re: circle cutter
« Reply #8 on: December 31, 2013, 03:17:48 AM »
How close do those plates come to standard tin cans?

My thought is that you could place a round disk on the plate and push the edge down around it.  Then you would have a shallow lid to solder onto a can.

SWAG, but we roll grooves on pipe instead of threading anymore......

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