Design & DIY Cottage Coach: Which screwdriver heads should you keep in your tool box? By Cottage Life Published: October 11, 2024 Updated: October 15, 2024 share Share on Facebook Share on Twitter Share on Pinterest Copy Link Cancel You likely have an array of screwdriver heads scattered in your cottage tool box. But how do you tell a Robertson from a Phillips screw? Cottage Coach Adam Holman walks you through how to identify the most common types of screwdriver heads.