A/C Manifold Gauge Sets

I bought the kit because it was the deal I could find. The gauge and hoses work all right. However, charge port connections do not attach well. In fact, it took a set a channel locks to remove them. Next time I will buy new ones rather than risk damaging the cars system. Replacing them will end up being about the price of buying a better set. I should have known better - buy cheap, get cheap. Learn from my mistake and do better.