Description: Wide application: This nut socket kit can be applied on a cordless screwdriver, impact driver, electric drill, and so on. Long lifespan: This nut socket set is made of strong and sturdy steel and has high hardness and is more durable and not easy to break. Humanized: This nut socket kit comes with a holder that makes you can easily store and keep your nut sockets organized. Fits place: This hexagonal nut socket set is a good fit for home use, repair shop use, furniture assembly, woodworking, and so on. Meet different needs: There are different types of sockets for you to choose from. You can use different size nut sockets at different situation. Specification: Material: Steel. Color: Grey silver. Socket type: (5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm) or (5mm, 5.5mm, 6mm, 7mm, 8mm, 10mm, 12mm). Screw bit type: 3/16 inch, 1/4 inch, 9/32 inch, 5/16 inch, 11/32 inch, 3/8 inch, 7/16 inch. Note: There might be a bit of color distortions due to different computer resolutions. There might be a slight error due to different hand measurements. Package Includes: Type 1: 1 Piece Bit Holder. 9 Pieces Nut Socket Bits. Type 2: 1 Piece Bit Holder. 7 Pieces Double Head Screw Sockets Drill Bits. Type 3: 1 Piece Bit Holder. 7 Pieces Double Head Sockets Drill Bits.