I am a mechanic and a customer brought me this caliper. He comes back two days later and says it's hard for him to break down. I know my abilities and it definitely wasn't me. So I know it must be the new caliper he changed. I ask him where he bought it and he says Revine and take me with this product. I did some caliper tests and found that his old broken caliper performed better than this so-called "new" Chinese caliper. Some might say you get what you pay for, but is your life really worth saving a few bucks for? The answer is no.