Internal Pipe Wrench

FIG. 1 is a top perspective view of an internal pipe wrench showing my new design; FIG. 2 a top perspective view of an internal pipe wrench thereof in use; FIG. 3 is a right side view and a mirror image of a left side view of an internal pipe wrench thereof; FIG. 4 is a top view and a mirror image of a bottom view of an internal pipe wrench thereof; and, FIG. 5 is a top view and a mirror image of a bottom view of an internal pipe wrench thereof. The broken lines are included for purposes of illustrating environmental structure and form no part of the claimed design.