The Apex Tool 834F 3/8″ Drive #4 Phillips( I believe this is the size) Screwdriver Driver Bit Socket is a single unit specialty socket designed for automotive use. Made by the brand Apex, this chrome-finished socket features a standard size of #4 Phillips and a 3/8″ drive size. With no warranty offered, this durable and reliable tool is perfect for professionals and enthusiasts looking to tackle automotive repairs and maintenance tasks with precision and ease.