Tell us about yourself!
This wrench, although clever, will bear little torque, even with the suggested metal insert and fiberglass. (This from a mechanic of 45 years holding an Airframe and Powerplant license, once with a boat powerplant repair business and a shop restoring vehicles as a hobby.) Tools can be absurdly expensive, but some real deals can be found at garage sales, on craigslist and ebay. Invest is a good set and it will serve you for a lifetime.