Control knobs, setting knobs and rotary handles transfer manual location into a feeding and adjusting movement - simply put, turning the knob adjusts the machinery setting. They are intuitive and easy to control ensuring accuracy and are used in almost every setting, from industrial applications to the domestic home. They are available in various materials, including plastic, stainless steel or aluminium options and are sold together with optional scale rings. There are options including an adjustable spindle or clamping elements and softline choices for an ergonomic grip.