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Which is better Thompson or er collets

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old mart15/08/2021 16:57:35
4655 forum posts
304 photos

If you are still unsure as to which system to favour, my vote would be for er, and I use both. If you have a lathe, then the same size er can be used on both machines if you get a collet plate which could also be used on a rotary table.

Howard Lewis15/08/2021 17:49:35
7227 forum posts
21 photos

Clarkson collets will be only for the stated size.

ER collets can accommodate a small range of sizes, usually 1 mm, so that Metric or Imperal sizes can be accommodate. And are widely available.

Your choice, depending on budget and space consideration..

Howard

terry callaghan15/08/2021 21:48:46
237 forum posts
10 photos

Thanks for all your replies. It looks like er is the way for me to go forward on this.

Steviegtr15/08/2021 21:58:47
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2668 forum posts
352 photos

Do not write off the Clarkson altogether. I use my Er most of the time. But you will find the Autolock HSS cutters in the used job lot section of ebay etc, quite cheaply. Which i did. I have a good array of different sizes that all fit into 3 collets.

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