Set Includes 13 metric combination wrenches: 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20 mm and foam tray organizer. Foam insert, precisely created using CNC routers, provide a tight fit for each tool in the set, keeping them neatly organized. Each tool slot is marked making tool identification quick and easy.Master SetsField Technician Sets. All foam inserts are made using 3D design and two layers of high-density foam in contrasting colors (black and orange). The orange color acts as a visual indicator so you can spot missing tools quickly. Tray measures 11.2″ (L) x 1.5″ (H) x 13.2″ (W) and fits in most standard size toolbox drawers. Meets ANSI standards