Shove over! It's time to give this black knob with mirror cap the attention it deserves. We're talking about the "Middle" knob here, you know, the one that sits in the middle of one of the most iconic guitar pedal layouts ever?
This style knob is perhaps most commonly seen on the Boss DS-1 Distortion pedal, nestled oh-so-practically between its skirted knob siblings. The Boss Middle knob is a classic for a reason: Its super-solid look complements our other Boss knob offerings—in 20mm (smooth and knurled shaft), 27mm, 33mm, and 45mm outer diameters—as well as looks stylish in its own right.
Like the proverbial middle child, this black mirror cap knob plays well with others: It features a slim, 14mm outer diameter; a subtle grip knurling; a full length, white-painted indicator; and options in both silver and gold caps.
For 18T knurled shaft potentiometers.
Boss style knob
Plastic with indicator
For 18T (6.0mm) knurled shaft pots
13mm (1/2") tall
14mm (1/2") outer diameter at the base
Note: We've got six different sizes of classic fluted Boss-style knobs, from extra-small (14mm) to extra-large (45mm). Check out the measurements for a size comparison.
Extra-Small (the knob you're currently looking at): 14mm x 13mm
The Tall Boy: 16mm x 12mm
Medium: 27mm x 16mm
Large: 33mm x 16mm
Extra-large: 45mm x 20mm
Tip: The term "Boss" refers to the aesthetic design of this knob, with the mirror cap inset into a plastic knob shell. A Boss-style knob will not automatically fit all Boss pedals. The right fit depends on the shaft size of the knob's potentiometer. Read this post to figure out what kind of knob you need: https://lovemyswitches.com/news/what-knob-will-fit-on-my-gear/