#ratchet_wheel__ratchetwheel toothed wheel held in place by a pawl or detent and turned by a lever
supertype: #wheel a simple machine consisting of a circular frame with spokes (or a solid disc) that can rotate on a shaft or axle (as in vehicles or other machines)
part of: #ratchet__rachet__ratch mechanical device consisting of a toothed wheel or rack engaged with a pawl that permits it to move in only one direction
part of: #spiral_ratchet_screwdriver__ratchet_screwdriver__ratchetscrewdriver a screwdriver with a ratchet (so the blade turns in only one direction) and a spiral in the handle (so the blade rotates) with downward pressure on the handle
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