From a M-520 and maybe some others they are not the same as others that look similar .
Size 23.9mm x 13mm to the Tang(spigot) 10mm width to knob bottom
The other M series mixers used wider knobs
From a M-520 and maybe some others they are not the same as others that look similar .
Size 23.9mm x 13mm to the Tang(spigot) 10mm width to knob bottom
The other M series mixers used wider knobs