Versatile Collet Knob System Suitable for a huge number of applications, our COMBINATION KNOBS feature a reliable collet fixing system, and can be configured as round knobs, wing knobs and spindle-shaped knobs in combination with a large selection of accessories.

standard round, wing and spindle type design with matt surfaces secure operation by tried and tested collet fixing system convenient assembly of knobs from the front; brass collet fixing system for tight fitting to the control spindle clip-on covers in different colours, with or without indicator line also suitable for fitting accessory arrow disks, disks, dials, stator and nut covers torsion protection for ‘D’ profiled axes 6/4.6 mm as accessory (suitable for round and wing knobs sizes ø 20 to 50 mm with 6 mm borehole) Round Knobs with boreholes 3, 4, 6,  8 mm, 1/8", 1/4" (depend from the size) Wing Knobs Spindle-shaped Knobs Collet Type from size 23 up: brass collet with through holes