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Old 05-31-2019, 11:00 AM
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Default 5C expanding collets

Anyone ever use an expanding 5C collet? A 4 piece set covers 1/2" through 2".
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Old 05-31-2019, 12:17 PM
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You realize they get machined to fit the hole size of the part?


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Old 05-31-2019, 02:02 PM
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Originally Posted by greywynd View Post
You realize they get machined to fit the hole size of the part?


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I did expect that. Just wondering if anyone has used them and what was their results.
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Old 05-31-2019, 03:17 PM
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We used to use them for some production stuff. Other than that, never found a use, I usually just turn a mandle in the lathe, and to make it ‘expand’ drill and tap it for a pipe thread, slit it lengthwise, and wind a pipe plug in.


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Old 06-01-2019, 04:18 AM
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Quote:
Originally Posted by greywynd View Post
We used to use them for some production stuff. Other than that, never found a use, I usually just turn a mandle in the lathe, and to make it ‘expand’ drill and tap it for a pipe thread, slit it lengthwise, and wind a pipe plug in.


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That's a neat idea. I'll have to file that away. Thank you.


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Old 06-01-2019, 07:21 AM
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Quote:
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That's a neat idea. I'll have to file that away. Thank you.





Dave


I like that idea too! I made one before, but never thought about a pipe plug, having tapered threads would have made that so much easier.


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Old 06-01-2019, 02:05 PM
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Just use the closest size pipe thread for the part you are dealing with.


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Old 06-01-2019, 04:14 PM
Lew Hartswick Lew Hartswick is offline
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Making the slits is always the biggest problem. Should be 3 so can't just use a bandsaw . I suppose on a large one could do 4 but I've never done any big enough to do so. I've made a bunch of hex holders for "Allthread" using that same idea and the slots with a 1/16" endmill are tedious at best. :-)
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Old 06-01-2019, 06:15 PM
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I always just cut a ‘plus’ across the end. Either a hacksaw, band saw, or zip cut depending on what was around.


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Old 06-01-2019, 08:38 PM
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If You run out of plumbing pats a countersunk socket head bolt will also, although the angle is steeper.
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