Review on KTI Universal Wrench Extender Adaptor; 1/2 Inch Drive, Heat Treated Drop Forged Body, Extendable for Enhanced Leverage on Tough Nuts and Bolts; KTI49403 by Harry Jenkins

This tool is much better than the old double wrench method. If I had to pick one main reason, it would be safety. For general purposes this is a great product and very useful. However, there are some issues with restricted areas. Sometimes using a breaker or ratchet on the side takes up more space than you have. While you can always use a wrench as an alternative, you still have that "ledge" that takes up space. Alternatively, as with other products, the extension piece must fit the key. The device makes a high-quality impression. It's quite heavy and the coating doesn't scratch easily. If you must use the double key method, do yourself a favor and get it instead. This is not only safer for you, but also avoids damaging your keys. For those who don't know, the double wrench method often leaves dents and/or other minor damage on even the best wrenches.