Where to buy 6.5mm ER40 collet?

Where to buy 6.5mm ER40 collet?

This topic has 1 reply, 2 voices, and was last updated 16 December 2024 at 07:15 by JasonB.

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16 December 2024 at 07:02 #770475
Hollowpoint
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@hollowpoint
I have a requirement to hold 6.5mm as accurately as possible.

Does anyone know where I might be able to get a 6.5mm ER40 collet?

Typically, a 7mm collet would normally be used as they collapse down to 6mm. However I have found that the more you squeeze the collet the worse the runout gets. The same 7mm collet that holds 7mm to less than 0.01mm won’t hold 6.5mm at less than 0.02mm. Normally that would probably be ok, but I need to be as accurate as possible in this instance.

Thanks in advance.
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16 December 2024 at 07:15 #770476
JasonB
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@jasonb
https://www.zedaro.com/products/0645151 or your local rego-fix supplier such as Brunner in the UK

Alternative is to bore your own split bush or soft jaws in-situe.
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