Tested it with a scientist chap I know and it turned out to be more accurate than my new one.
Then he said `Its better than the expensive digital one I bought '. So I felt better.
So if you want a good quality gauge for £4.00 go to an antique shop!.
Then I went back and I did the same with a claw hammer I needed, got a superb one for half the price of a new one.
