Abstract: A router clamp for positioning and attaching a router having a housing to a radial saw arm so as to enable a user to accomplish overhead routing operations. The router clamp includes a bridge plate member affixed to a pair of inverted L-shaped brackets, one of the brackets being adjustably and removably affixed to the bridge plate member, a substantially cylindrical collar comprising two half sections for securing the router therein with the aid of an adjustable compression band to inwardly compress the half cylindrical sections of the collar against the router housing.