Genius Tools 848034 Schlagschrauber-Stecknuss, 2,5 cm (1 Zoll), 34 mm : Amazon.de: DIY & Tools
Amazon.com: Guyker 3Pcs Guitar Potentiometer Knobs with 6mm (0.24") Dia. Shaft Pots - Iron Dome Control Knob Fits for Electric Bass Guitar (Rainbow Chameleon) : Musical Instruments