The Milwaukee SAE Flex Head Ratching combination wrenches feature 2.5 deg. of arc swing and 144 ratcheting positions, allowing quick and efficient work in tight spaces. The flexible head gives increased accessibility in difficult-to-reach areas. This wrench has double-stacked pawls within the ratcheting mechanism, which increases durability and extends the life of the tool. For easy size identification and the quick distinction between SAE and metric sets.