The handle that is used to turn the can is comprised of an axle and a wheel. Lastly, the circular wheel that cuts into a can is called a wedge.
[header] How to use a can opener [title] Understand the components of a can opener. [step] Though it may look like a simple tool, it's actually comprised of three different machine apparatuses. The two long arms that clamp onto the side of the can are the levers.