Precision machined steel and is compatible with porter-cable, dealt, and making routers plus any others built with a template guide adapter
Fits all brands of router bases or router plate rings that have a recessed 1-3/16 in center hole
Comes in a nice storage case, so your bushings never get lost
7 Common bushing sizes for all your routing needs
1-3/16 in. O.D. wave washer included, which provides resistance against the locking nut to keep your template guide bushing firmly locked in place