I am using it for the decorative screw of things that I care about the appearance.
The minus screw is more cute than plus, so I often use it.
I used it for stainless steel because it is used around the water.
It was cheap and good goods.
A minus screw is absolutely necessary for repairing the old bike. The quality was also good so I was very satisfied. Order correspondence is also good so it will be appreciated if BSF 26 TPI etc can be ordered as well.