If the only hex wrenches you have are the five or six random ones kicking around the bottom of your kitchen drawer—leftovers from IKEA builds, light fixtures, and towel bars—it might be time for an upgrade.The good news is that you don’t need to invest a lot to get a decent set. After testing 18 models, we think the inexpensive Amazon Basics Hex Key Allen Wrench Set with Ball End is the best for around-the-house jobs, like installing towel bars, tightening door handles, or assembling knock-down furniture.