The Milwaukee Tool 15-pc Metric Flex Head Ratcheting Combination Wrench Set, No. 48-22-9513, features 2.5 degrees of arc swing and 144 ratcheting positions, allowing quick and efficient work in tight spaces. The flex head wrenches have double-stacked pawls within the ratcheting mechanism, which is designed to increase durability and extend the life of the tools. The MAXBITE open-end grip provides additional torque on nuts and bolts and the ergonomic I-beam handles offer comfort. The set comes in a tray ideal for steel storage drawers.