Q Bit 3-3/4 in. X 4 in. 2-Gang Oscillating Old Work Box Saw Blade SQ1000-D - The Home Depot
2 pcs One Step in Place Stainless Steel Square Slot Cutter for Electrical Box Drywall Outlet Cutout Tool oscillating Square Blade for Drywall, Plastic Metal, Wood: Amazon.com: Tools & Home Improvement
Mark N Guard® by Buddy Tools – Outlet Marker for Drywall Installation – Easy | Buddy Tools LLC
Calculated Industries 8120 Plug Mark Drywall Electrical Box Cutout Locator for Existing Electrical Outlets in Rehabilitation and Replacement Work, Red - Amazon.com
Mark N Guard® by Buddy Tools – Outlet Marker for Drywall Installation – Easy | Buddy Tools LLC
Jonard Tools Plastic Electrical Outlet Cutout in the Electrical Outlet Cutouts department at Lowes.com
Oscillating Saw, Alternate way to cut around outlets and light switches. - YouTube
Calculated Industries 8105 Blind Mark Drywall Electrical Box Locator Tool – Powerful Rare-Earth Magnetic Targets (3) and Locator Kit - Amazon.com