Do it #2 x 4 in. Square Recess Screwdriver is expertly designed to fit Robertson and Scrulox screws, making it an essential tool for various applications. This screwdriver is widely used in mobile homes, recreational vehicles, and the furniture industry due to its reliable performance and precise fit. With an overall length of 7½ inches, it the balance of reach and control for your fastening needs. Model Number: 307983