When working on your engine or taking apart another system, always use the right tool for the right job. Taking proper care of your hardware will allow reuse, will ensure proper torque, and won't round off the heads or tool attachment points. Here are some examples: It is always better to use a an open end or line wrench on a line, and a box wrench on a bolt. Using an adjustable wrench can round off the corners of the bolt or hex making your next repair more difficult. It you