The Milwaukee 191-Piece Mechanic Tool Set provides users with a wide range of innovative solutions. Each piece in this set is designed with pro features and premium performance. This Milwaukee hand tool set includes 1/4 in. and 3/8 in. Drive Ratchet and Socket Kits with both Metric and SAE Sockets with FOUR FLAT sides. These sockets are anti-roll and wrench-ready. There are also 2 Combination Wrench Sets and 2 Ratcheting Combination Wrench Sets featured in both Metric and SAE sizes. Also included are Picks, Pry Bars, Screwdrivers, Locking Pliers, and Markers, providing users ultimate durability and innovation for enhanced productivity. The Milwaukee 15-Piece SAE and Metric Flex Head Ratcheting Combination Wrench Set features 2.5° 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 increases durability. The flexible head gives users increased accessibility in difficult-to-reach areas. The MAXBITE Open-End Grip improves the wrench's grip on nuts and bolts, offering users 25% more torque than smooth-faced wrenches. This flex head wrench set feature ergonomic I-Beam handles designed and ink-filled size labels for easy size identification and quick distinction between SAE and Metric sets. The 15-Piece Ratcheting Combination Wrench Set comes in a tray designed for steel storage drawers. Milwaukee combination wrenches feature a lifetime guarantee.