When you begin repairing customer vehicles as a regular position, you need to be able to easily identify your socket sizes and other hand tools. The factory-made labels for socket sizes can be difficult to read and wear away easily. Re-label your sockets with colored tape and a permanent market. If you have an engraving device, you may even want to place your initials or name on your sockets and hand tools. By clearly labeling your hand tools can save a large amount of time each month thus improving your bottom line.