Adjustment needed

To the silver screw head! Best I can manage today - I did take a shot of Sydney's ears but the quality was not good enough (well it was 4.30 and nearly dark). He is not a strange person but a fawn lurcher who's ears are nearly as long as his head is. They are very amusing. Perhaps another day I'll get a better shot. I'm not quite ready for tomorrow or indeed the day after but things can always be done in the morning.
The adjustment screw is for the crimp punch... Now who knew that is what is was?