One thing I learned was don't waist any time checking out your purchase when you receive it. Amazon has a great return policy but you can't wait too long. I ordered an assortment of crimp terminals and without thinking I just stuck them in the shop to be ready when needed. When the need came I discovered they were worse than cheap junk, totally unusable. If I had caught it when the return window was open, no harm no foul. Amazon even pays the return shipping. As it ended up I was out $12. Paid for useless crap.