TEKTON hand drive accessories complement your existing socket system. This set includes 1/4 in. drive 3/4, 3, 6, 9, and 12 in. hand drive extensions, along with a universal joint, an adapter, and a hex bit holder. Attach an extension to your drive tool for reaching past obstructions or into tight, narrow spaces with your socket. Reach around obstructions and access fasteners at an angle with the universal joint. The adapter allows you to adapt 1/4 in. drive tools to 3/8 in. drive sockets. The hex bit holder allows you to use 1/4 in. hex shank bits with 1/4 in. drive tools. The included organization rail comes with twist lock clips and top-mount extension holders. Ridges along the rail prevent the clips and holders from sliding, and a keyhole slot helps it lock into a tray.