This set of 17 shallow sockets from US PRO is manufactured from chrome vanadium steel with a polished mirror finish. Each socket features a knurled ring on the bottom for improved grip. These are high-quality single hex sockets with a 12-point design, perfect for metric applications. The 3/8" square drive ensures compatibility with any standard 3/8" drive ratchet or bar. The set includes sockets in sizes from 8mm to 24mm and comes supplied in a plastic tray for convenient storage. Sizes included: 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mm, and 24mm. Manufacturer: US PRO.