Gridfinity Socket Holder-SAE Spark Plug 3/8" Drive

3/8" Drive Gridfinity SAE spark plug socket holders. SAE sizes 5/8, ¾, 13/16 These were designed for Cresent Brand Sockets, but may work with other brands. This is part of a collection that can hold 256 sockets in a Harbor Freight US General Tool Chest in a single draw.