2 pin nuts on SSL preamp - what's the tool called?

[NoisyIndividual]

The BSS and Drawmer just use regular hex pot nuts.

 

[pucho812]

It’s a collet knob that uses a collet tool as others have already said.

 

[pinebox]

That looks cool. I can't quite see from the image...does it have a hole for the pot shaft?

Yes, I have the same one.

The only issue is due to it being double sided, if you really need to apply pressure it digs into your palm.

 

[Rob Flinn]

Another "cheap" option

https://uk.rs-online.com/web/p/potentiometer-knobs/2527037

 

[NOON]

Thanks everyone . To clarify, some people are suggesting tools to get the knobs off, what I was looking for was a tool to get the nut off a pot that was recessed about 5mm into the face plate. It needs to be hollow to allow for the pot shaft and not too thick because there's only a couple of mm clearance in the recess. I've improvised with the needle nose pliers for this job but have a destuffing tool on the way for next time.

 

[zonkers31]

https://www.studioelectronics.biz/sunshop/index.php?l=product_detail&p=3571

this does both the knobs and the nuts. Its hollow.

 

[Script]

Off topic wrt BSS901

Anyone ever seen a schematic for the first version of that box?

You mean the one with LF353s?
https://groupdiy.com/threads/bss.49437/post-643920