Abstract: An attachment for mounting a power tool, such as a hand drill or a router, having a cutter to enable the tool to be used to bevel the outside surface of hollow pipes. The attachment is capable of mounting a variety of different power tools and is adjustable to enable beveling the ends of pipes having different diameters. The device includes a base plate that mounts the power tool to one side thereof. The plate has an opening through which the rotary cutter projects forwardly. Also, projecting forwardly of the face plate are three freely rotatable guide rollers. The various elements are relatively adjustable in the plane of the face plate to accommodate pipes of different diameter. One of the rollers is utilized to engage the inside surface or core of a pipe end portion while the remaining two rollers engage the outside surface of the pipe at opposite sides of the rotary cutter.