NO MORE CUTTING WIRES, 3 EASY STEPS, MINIMAL CLEAN UP. PERFECT FOR DO IT YOURSELF. Great tool very easy to use. This tool would be ideal to use in hospitals or where a dust free zone is required.

1. Insert guide pins 2. Install drywall, place guide plate over guide pins. 3. Place knock plate over guide plate, hammer through.

That simple you will wonder how you ever managed without this amazing tool.