If you need it for a one off job or for infrequent work, then it's best to hire one from one of the big hire shops such as Speedy or Brandons. They usually have the best tools.I ordered one of the cheap impact wrenches from Ebay. The seller came back and asked whether I wanted a yellow one or a green one!. Today they have come back again and said they have tested the whole batch and they are all faulty. Would I wait a few days until they can find some more?......