3PCS Hexagonal Handle Quick Release Rod Inner Hexagonal Screwdriver Head Holder, with three sizes (6cm, 10cm, 15cm) for quick replacement and release. The system allows you to easily and quickly install, lock, and unlock the drill bit. The magnetic screwdriver head holder makes it easy to pick up and secure screws. Hexagonal Handle: 2.4-inch Hexagonal Handle can be easily installed into electric screwdrivers, drill bits, and handheld screwdrivers, suitable for extension sleeves of various screwdriver heads, screwdriver head conversion, suitable for screws, nuts, drill bits, screwdrivers, drill bit kits, and handheld screwdrivers