Want to put a window in your case but don't have the expensive power tools? Not to worry! The GO! MOD Nibbler Tool by Cables To Go provides a cost-effective way to get that case mod completed. Drill a pilot hole and let the Nibbler Tool do the rest. By modifying your old case with this affordable tool, you'll have money left over to add additional sound and video cards, cold cathode tubes, and LED fans! And you don't have to stop at case modding. Use the Nibbler Tool to cut shapes into any light-gauge sheet metal, copper, aluminum, or plastic medium.