You can never find a hex-head wrench when you need one; and when you can, it's often not the right size. This Ratcheting Hex Key Wrench incorporates nine of the most commonly used sizes and includes a handle for tightening and loosening bolts. It's made from tempered steel and chrome vanadium steel hardened with a black oxide coating. Cost: $17. 800-597-6170. www.ratchetinghexwrench.com.