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ER 20 Collet Holder for a Sherline

Pete

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Jun 26, 2014
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#1
Does anyone know if they make a collet holder for ER 20 collets that fits a Sherline lathe/mill?
I received the collet set in a package deal and do not have a holder for them that fits anything.
 

mikey

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#2
Does anyone know if they make a collet holder for ER 20 collets that fits a Sherline lathe/mill?
I received the collet set in a package deal and do not have a holder for them that fits anything.
I never saw an ER-20 chuck with a 3/4-16 thread. You would have to buy one and thread it, then bore the register.
 

Pete

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#3
Thanks I wasn't sure if a ER20 holder was available for the Sherline. As I said I received a set of collets in a package deal and do not have a use for them unless I can adapt them for use on the Sherline.
 

mikey

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#4
If you can find a chuck with enough wall thickness, you can try boring and threading it. Just include the register and it should work okay.
 

pstemari

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#6
ER50 collets on a Sherline lathe? That's pretty absurd.

Sent from my Pixel XL using Tapatalk
 

Choiliefan

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Jul 13, 2017
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#7
I've been using an er20 collet on my sherline mill. Already had the collets and purchased a cheap import chuck with Morse 1 shank. Drawbar thread is m6 so I made an m6 to 1/4-20 adapter and the thing works fine. The Morse shank protrudes about the same as the sherline/Jacobs drill chuck so it's not too bad. Everything runs true and the chuck cost 12 bucks including shipping.

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kvt

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Oct 21, 2014
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#8
I have a ER collet chuck on my Sherline as well. But what I did was go get me some long Metric bolts that I use for the draw bar. That way less items to go wrong. In fact I mainly use it even for light drilling vice the drill chuck as it has a lot of run out.
 

Choiliefan

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#9
I made the adapter because I could't find a 120mm m6 bolt for the drawbar. In my case it was easier/quicker to thread the cut-off end of an m6 bolt and turn and tap the adapter. My inspiration came from a similar adapter used on EMCO Maximat milling heads. Best wishes,
 

Desolus

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#10
Did someone say obsurd? *goes to look ar the er50 chucks*