Martin , forgot to ask if you were using it on plates
or direct to hull. If litho, plastic, or thin card plates
you can use a dressmakers wheel from the back - I have two of different size wheels for different spacing - they are pretty cheap so I would not advise trying to borrow you know who's , That would be much quicker to do.
Agree with Dodgy - Chinese pins are much softer - trying to use so called office pins from China found they bent easily