Levers are literally all around us. You body uses them to move, pick up a pen to sign your name and you’ll use mechanical advantage to make that ballpoint roll, and that can of soda doesn’t open ...

There are two main types of mechanical control levers. Handle/knob—Handle knob, wheel or other grip fitting for attachment to the end of a control cable or wire rope. Lever/control—A lever or lever ...

Levers are available as extended handles, typically with a threaded shaft or hole at one end to enable fastening to a machine. They are used to increase mechanical advantage, allowing hand operation ...