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