Porter-Cable 75301 Router Motor Height Adjuster

The Porter-Cable 75301 is a router motor height adjuster. The adjuster is inserted through one hole in the table and the clamp is unlocked. It is then inserted through the other hole and the height is adjusted, while watching the calibrated dial rotate on the table. The clamp is then locked at the first hole.

Releases router motor
Adjust router bit height
Clamp router motor
Do it all from above the router table

Router Motor Height Adjuster

Fine height adjustment