Our SAE 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 Milwaukee SAE wrench sizes range from 1/4 in. to 1 in. and feature a Lifetime Guarantee.Find the WRENCH COMBO 5/16 SAE at Ace.