This Universal Socket Wrench works with Standard and Metric Bolts, Spline, 6 or 12 Point, Torx, and Square  it also works with damaged bolts! The heads rotate 360 degrees and lock in place, providing a multitude of sizes that will save you the trouble of lugging around multiple tools. Includes the most popular Metric and American SAE sizes: 8mm (5/16), 10mm (3/8), 11mm (7/16), 13mm (1/2), 14mm (9/16), 16mm (5/8 ), 17mm (11/16), 19mm (3/4). Each socket is hollow, allowing you to reach bolts that are on long threads. It features an ergonomic, rubberized handle that improves grip and provides comfort. Heads are angled at about 45 degrees so that the handle does not get in the way when you are turning, or you can swivel the handle into any angle you need. This tool is ideal for numerous projects and jobs including residential, pipes, shelving, automotive, construction, bicycles, and more!