ER collet size help

Vertex (available from Rotagrip) list OZ nuts in their catalogue. They probably sell a chuck as well if you look hard enough (OZ chucks are listed by SanTool in Germany).

http://www.rotagriponline.com/datasheets/Vertex36/C30.pdf

They are also known as ISO 10897, so that might help in a search.

Edited By DC31k on 12/12/2020 12:02:24

I believe that it will be next to impossible to get a holder for these collets, as they are intended to be fitted directly to the machine spindle, which would be a dedicated industrial woodworking router.

What shank would you like, sir?

https://www.rcm-machines.com/en/machine-accessories/collet-chuck/mt2/collet-chuck-oz25-mt2-with-wrench/rcmk2oz25

https://www.rcm-machines.com/en/machine-accessories/collet-chuck/mt3/vertex-collet-chuck-oz25-mt3--with-wrench/rcmk3oz25

https://www.rcm-machines.com/en/machine-accessories/collet-chuck/sk40/collet-chuck--with-wrench-oz25-iso40/rcsk40oz25

Thats interesting, is that the size to match the collets that the op has?

Good Find DC ! I've bookmarked the page for future reference.

Old Mart. Yes the size is correct. What makes you think these collets are for wood machines? They were being disposed of by a heavy engineering Co. so I'm curious.

The OZ system used to be a lot more common with hobby-level machines, but it has been overtaken in the metalworking field by the ER system. OZ is more common in woodworking, but Sandvik is not really into that field.

Closer to home, Amadeal has one but I am not sure if it is OZ25.

https://www.amadeal.co.uk/acatalog/Collet-Set-7-Piece-MT3-AMA_AC_COL_4_16RB.html#SID=177

Sandvik don't only make tooling for metalwork. If you google "EOC16 collets" there are many hits, mainly concerning woodworking routers, most of which nowerdays are CNC.

**LINK**

It would be a good idea to look through the bore sizes of the collets and make sure a good range of sizes is present before looking for a 30 holder for them. The holders are available, but probably expensive.

Edited By old mart on 13/12/2020 14:50:31

The box for the collet he posted has 'Sandvik Coromant' clearly written on it.

Please look at their website, particularly the company history, as well as the Wikipedia page for the company, and advise where their wood butchery equipment is located.

I have an excellent bowsaw in the shed with Sandvik in big letters on it. It's hopeless at cutting metal.

Edited By old mart on 13/12/2020 18:49:22

I've found a useful site for collets which is worth bookmarking.

**LINK**