A wheel found in the cabs or on the outside of [[locomotive]]s and [[train]] cars/wagons, used to precisely control a degree of friction brake application. If a train has what looks like a [[steering wheel]], it's almost guaranteed to be a [[handbrake wheel]] instead.

h1. See Also
* "Example photograph":[https://commons.wikimedia.org/wiki/File:Meitetsu_Mo401_Hand_brake.jpg]
handbrake wheel