No more lifting and lowering heavy drywall sheets multiple times. This Center Mark Magnetic Drywall Locator Tool (8110) from Calculated Industries uses powerful rare-earth magnets to help you accurately locate recessed lighting fixtures and cut can-light holes with no measuring required. Great for both first-time DIYs or the experienced handyperson, it involves just 3 easy steps: screw the center mark targets into your recessed can light, install the drywall, locate and cut out the targets.