Some Chinese wrenches are getting better. It's just the simple fact that American names being attached to hand tools made in China and other countries that is unsettling and deliberately confusing. it's wrong.

I know this is an old post but I think you can learn more by shadowing a more experienced technician or maintenance tech. Books can only teach you so much and then it is the real world experience as a maintenance tech that puts you at the next level. Troubleshooting independence and good solid repairs are done best by experienced techs.