A tool which is positionable adjacent a relatively sharp edge around which or past which a sheathed cable is desired to be routed includes a pair of clamping members which are manipulable with the hand of a user and adapted to be clamped to an item disposed adjacent the relatively sharp edge. In addition, the tool includes a pair of guide members which are attached to the clamping members of the tool and which provide, when the tool is clamped about the item, a substantially enclosed, smooth-surfaced passageway through which the sheathed cable can be routed to eliminate any contact between the relatively sharp edge and the sheathed cable routed around or past the relatively sharp edge. The defined passageway reduces the likelihood that the relative sharp edge will damage the sheathing of the cable as the cable is routed around or past the relatively sharp edge.