Wrenches, it’s all about wrenches. All Sonic Tools wrenches are made from Chrome-Vanadium steel that offers a lifetime of durability and resistance to weather and chemicals. Standard Sonic Combination wrenches provide one open-end and one box-end and include sizes from 6mm to 32mm. Double Open-end wrenches offer two sizes for each wrench from 6mm to 32mm. Eight 75-degree offset box-end wrenches cover 16 different sizes from 6mm to 22mm. Finally, ten Double Open-end wrenches offer a different size on each end from 6mm to 32mm. Get your Metric wrench fill with just this one Sonic 40-piece set.