[Superman]

I'm not sure what terms to use in searching for information on this. Hoping you guys can help me. Door hardware sometimes requires some sort of routing. The striker plates that get installed into door jams are flush with the surface of the door jamb because a very shallow rectangle has been routed to accept those plates. Similarly, the edge of my door also needs similar shallow rectangular routing to accept the door lock hardware tongue thingies.

I have a Dremel tool. Three, actually. One has a small spinning shaft, one takes a round blade about 3" in diameter and another vibrates which can operate a triangular sanding pad or certain cutting bits. I do not want to buy a friggin' router if I can help it.

Advise me please.