Calculated Industries Blind Mark Plastic Magnetic Drywall Cutout Tool 8.25 in. W X 11.5 in. L

The Blind Mark electrical outlet locator uses powerful rare-earth magnets to help you accurately locate and mark for cutting electrical outlet access holes in drywall, sheetrock, paneling and other materials with no measuring required. Eliminates costly measuring errors and improves your productivity. Other drywall locator methods require you to lift and lower heavy drywall sheets multiple times to mark, cut, then install. With the Blind Mark you simply put it up once, cut the hole and you're done.