Description
This AllParts MK-0137-010 set gives you a two-tier chrome knob arrangement designed specifically for concentric (stacked) potentiometers, where two controls share a single shaft position. Each knob is secured with its own set screw, so both layers turn independently and stay locked in place once you’ve dialed in your settings.
- Top knob: .192″ inside diameter, 3/4″ diameter, 1/2″ tall
- Bottom knob: .272″ inside diameter, 1″ diameter, 3/8″ tall
Sizing is matched to AllParts concentric pots EP 4585-000 (250K/500K) and EP 4586-000 (500K/500K), making this a straightforward swap if you’re using or upgrading to one of those. Finished in chrome to keep things looking sharp and consistent on control plates and pickguards.
A handy pickup for anyone rewiring or restoring dual-control setups, and small enough to make a solid stocking stuffer for the guitar tinkerer on your list.





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