These do the job but are clearly not precision tools. From requiring a very hard squeeze to get closed to the flimsy feeling build quality, these do not justify a $26 price tag. The included 100 pieces terminals don''t add much value either. 100 pieces are only a few per style and are extremely flimsy. You can bend the terminals with your hand (see EDIT below). All in all the crimpers feel like they belong in the sub $10 section and the 100 piece crimp terminal set adds about $3 worth of value. If you need these for occasional use, such as I do, they will get the job done. If you are criming often every day, the force required for these will soon tire your hand and I don't expect the tool to hold up to severe daily use.
EDIT: Today I decided to test the ductile strength (not scientifically) of these crimp ends. I am impressed, these actually are COPPER!!!!! After bending back and forward a few times i was able to get the outside plating to seperate, exposing real copper underneath. I did not expect the listing to be true in their claims of copper. I am impressed by this, in which I must say justifies the price a little better.