The ideal tool is one suited to the specific task at hand. And you can't get more specific than these split-end-box-wrench heads. When used with a ratchet, they're meant to grasp the flare nuts that connect the tubes in air-conditioning and gas-supply systems. This unusual ratchet by HuskyPro Tools has a swivel head that locks in seven different positions. Not exactly for your average homeowner, but still pretty cool.