The ornamental design for a displaypanel for controllingmachine tools with icon, as shown and described.
FIG. 1 is a front view of a display panel for controlling machine tools with icon showing our new design;
FIG. 2 is a left side elevational view thereof;
FIG. 3 is a top plan view thereof; and,
FIG. 4 is a front view thereof, showing the icon enlarged and separate for clarity of illustration.
The inner-most broken line rectangle in FIG. 1 showing the display panel is included for the purpose of illustrating portions of the article; all other broken lines in FIGS. 1, 2, and 3 showing the display device are included for the purpose of illustrating environmental structure; all broken lines form no part of the claimed design.