Plane, Jointer

Plane, Jointer

The long jointer plane levels out the waves in a board in the same way that a long ocean-going ship levels out the waves in the ocean. Where a shorter plane or boat will ride up and down the waves' crests and troughs, the longer craft will span the crests and ride over the troughs. In the case of the long jointer, the iron cuts a little off the tops of the crests with every pass until they all reach the level of the troughs, leaving the surface dead level.

Support for pbs.org

Learn more about PBS sponsorship