These Milwaukee Hand Tools MAX BITE™ Ratcheting Combination Spanners have 144 ratcheting teeth with 2.5° of arc swing, allowing users to work quickly and efficiently in tight spaces. Durable, double-stacked pawls for longer ratchet life. Made from chrome alloy steel with a chrome plated finish. The MAX BITE™ open end grip improves the ratchet wrench's grip on nuts and bolts, offering 25% more torque than smooth faced wrenches. Rounded i-beam handle for comfortable handling grip. Ink-filled size labels provide easy size identification. 7 Piece Set: Sizes: 8, 10, 12, 13, 14, 15, 17mm 15 Piece Set: Sizes: 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22mm The Milwaukee Hand Tools MAX BITE™ Ratcheting Metric Combi Spanner 7 Piece Set comes in a portable locking storage tray, offering organisation both on and off the jobsite. Contains: 1 of each size: 8, 10, 12, 13, 14, 15, 17mm