Combination wrenches, such as the , come in sets with both SAE and metric sizes. While combination wrenches allow you to create a lot of torque, you also need an individual wrench for each fastener size, which is why the average combination wrench set has 24 pieces or more. Since the sockets fit over the heads of bolts and nuts similar to the box end of a combination wrench, you can create a lot of torque with a socket wrench. Hex wrench sets, like the , are typically more affordable than other types of wrench sets, but they’re also not used nearly as widely as other types of wrenches (unless you assemble a ton of furniture). Larger wrench sets will typically include a broader range of sizes but will be heavier and less portable than small wrench sets with a curated selection of sizes.