Features: Brand new and high quality Boost your work efficiency with this set of 3 801/802 batch head self-locking connectors and 802 socket adapter! Made of high-quality hardened steel and stainless steel, they offer great durability and high torque for your electric screwdriver or drill. Thanks to the built-in strong magnet and locking device, our connectors prevent screwdrivers from slipping off, providing you with a more stable working experience. They are designed for single-head batch nozzles and can be easily connected to various tools such as screwdrivers, drills, and wind batches. This product is perfect for anyone who needs to switch between different batch heads or screwdriver bits frequently, including DIY enthusiasts, carpenters, mechanics, and electricians. Use it in a variety of settings, from home repairs and woodworking to automotive maintenance and industrial manufacturing. You can rely on these connectors to quickly and securely fasten different types of screws and bolts. With their lightweight design and compact size, our connectors are easy to carry around and store. Say goodbye to bulky and heavy toolboxes and enjoy the convenience of this versatile set! Specifications: Type of Head: Round Type of Shank: 802 (6mm) 801(5mm) 801 to 1/4 "hex shank(6.35mm) 802 to 1/4 "hex shank(6.35mm) Extend all kinds of screwdriver bits, screwdriver head conversion uses Package Includes: 3PCS x Screwdriver Bits Extend Bar note: 1.Please allow 1-2mm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.