Tekton impact drive accessories complement your existing socket system. This set includes 1/4, 3/8, and 1/2 inch drive impact accessories. 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 a universal joint. The adapters and reducers can help compensate for lost or broken sockets, fill in gaps for incomplete size ranges, and expand the range of your socket system. 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.