The MILWAUKEE® 21MM Metric Ratcheting Combination Wrench features 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 wrench's grip on nuts and bolts, offering 25% more torque than smooth-faced wrenches. The combination wrench features 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® 21MM ratcheting combination wrench features a Lifetime Guarantee.