Our Metric Ratcheting Combination Wrenches feature 2.5 degrees of arc swing and 144 ratcheting positions, allowing quick and efficient work in tight spaces. 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. The Milwaukee metric wrench sizes range from 8mm to 22mm and feature a Lifetime Guarantee.