Milwaukee 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. The MAXBITE™ Open-End Grip improves the metric ratchet wrench's grip on nuts and bolts, offering 25% more torque than smooth-faced wrenches. The combination wrench has an ergonomic I-Beam handle design for improved comfort and ink-filled size labels for easy size identification and quick distinction between SAE and metric sets. The MILWAUKEE® metric wrench sizes range from 8mm to 22mm and feature a Lifetime Guarantee.