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Duct crimping drill attachment.
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Previously:
https://www.homemadetools.net/forum/...879#post148603
https://www.homemadetools.net/forum/...810#post148313
https://www.homemadetools.net/forum/...028#post125436
That tool is a winner for some one who does that for a living. That is 10 times faster than a pair of Malco crimpers. The hand crimpers have their place for the casual user, but this is what a tinner needs on the job. Excellent!
What’s inside?
Rick
I would guess two gears.
That, or possibly a pair of dies, driven by a rotary cam (?)Quote:
Originally Posted by jdurand
Cams make sense. The gears must back away to allow the metal to enter
Seems to have no eccentrics, a mere 2 gears (with tapered ends?) and loose fit is rugged and "field expedient" enough,
as the manufacturer's own instruction tells you to enter/ exit at an angle:
Attachment 33261
2 cents
Johan
Ah, now I understand. The key is that you enter and exit at an angle. I didn't see that part of the process in the video.Quote:
Originally Posted by DIYSwede
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a secret potential patent.Quote:
Originally Posted by rgsparber
i could wring out my socks with the second one in post #9
