·Premium CR-V: This 18-Piece Drive Tool Accessory Set made from Heavy-duty Chrome-Vanadium steel alloy with a corrosion-resistant black phosphate finish, providing the durability for a hard use

·18-Pack Set: This set includes: 1/4"Dr Extension Bar: 3" & 6"; 3/8"Dr Extension Bar: 3"& 6"&10"; 1/2"Dr Extension Bar: 3"& 6"&10"; Impact Socket Adapter: 1/4"F * 3/8"M, 3/8"F * 1/4"M, 3/8"F * 1/2"M, 1/2"F * 3/8"M; Impact Univeral Joint: 1/4"Dr, 3/8"Dr, 1/2"Dr; Impact Coupler: 1/4"Hex * 1/4"Dr, 1/4"Hex * 3/8"Dr, 5/16"Hex * 1/2"Dr

·9-Pack Set: This set includes 3/8"Dr Extension Bar: 3"& 6"&10"; Impact Socket Adapter: 1/4"F * 3/8"M, 3/8"F * 1/4"M, 1/2"F * 3/8"M; Impact Univeral Joint: 1/4"Dr, 3/8"Dr, 1/2"Dr

·Versatile: This high quality impact socket accessory set includes the sizes and tools you'll need for almost any project. Socket extensions for reaching tight space, universal joints for changing angles and getting narrow area, socket adapters allow using different drive size sockets, coupler can be used to convert different screwdrivers for installation and removal of bolts

·Easy Identification: All drive tools are marked with size to facilitate identification and get appropriate size accessories, saving time and effort

·Convenient Storage: The professional socket accessory kit comes with a heavy duty blow molded storage case for easy transportation, safe storage, and quick organization