Strange Clarkson Autolock Collet

This topic has 1 reply, 2 voices, and was last updated 2 November 2026 at 00:11 by Nigel Graham 2.

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1 November 2026 at 23:42 #872357
JohnF
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@johnf59703
I have never come across this type of Clarkson Autolock Chuck collet so wonder if anyone can throw any light on it ?

Instead if the usual thread for the cutter it is blanked off with a centre so it will close using the nut and inside it has a slot at the top for say a drive key on a cutter — never seen these either ?

Thanks of any information John

PS the odd one is on the left !
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2 November 2026 at 00:11 #872363
Nigel Graham 2
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@nigelgraham2
It looks like a removeable plug so may be a user’s modification, perhaps to allow holding non-threaded cutters at constant depth.

The slot could be for some sort of cutter of which the likes are a puzzle… or might simply be a screwdriver slot!
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Strange Clarkson Autolock Collet

Strange Clarkson Autolock Collet

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