The ornamental design for a desktopholepunch with one edge guide, as shown and described.
FIG. 1 is an upper front, left side perspective view showing our new desktop hole punch with one edge guide partially extended from the housing;
FIG. 2 is an upper front, right side perspective view of the desktop hole punch with one edge guide of FIG. 1;
FIG. 3 is an upper front end view;
FIG. 4 is an upper back, left side perspective view, wherein the broken lines represent the internal features not forming part of the claimed subject matter;
FIG. 5 is an upper back, right side perspective view wherein the edge guide is slightly retracted into the housing, wherein the broken lines represent the internal features not forming part of the claimed subject matter;
FIG. 6 is a back elevational view;
FIG. 7 is a right side elevational view;
FIG. 8 is a front elevational view; and,
FIG. 9 is a left side elevational view.
The broken lines are for the purpose of illustrating environmental matter and form no part of the claimed design.