Dude,

Craftsman makes by far the worst, most uncomfortable flat wrenches I have ever used. I have been mechanicing for about 50 years and can say that with certainty. The wrenches look as if they have just been stamped out of flat stock, chrome plated, and put on the shelf. There has been no effort to round the corners to make them comfortable in your hand. If you look on the side of the jaws you can see the lines left by the punch die. No effort made to clean up the product.

The fact that they come with a lifetime guarentee really means nothing. All manufacturers of quality tools basically have the same warrenty.

Try Blackhawk brand. They are made by Proto and are for sale at some auto parts stores. Most national brands of tools make a line that is sold at auto parts stores and is every bit as good as their main line.