Evolution is a fun thing. I went from cutting wires and twisting them with tape, to cutting and crimping, to cutting and soldering, and now to repinning. I was looking for a good complete set for this purpose and this one fits the bill. I don't use them professionally, so I can't comment from that perspective, but I do housework. You will receive 3 sets from one set, 2 from another and 2 from the final set. That means I can store 1 set in 2 different places. I've used different bits and they work as intended. You have to remember sometimes that these are extremely thin pieces of metal and too much force will bend them. It's not the tooling, it's just the tolerances and rough processing of some connectors these days. Basically I think they're ok. They have worked as many times as I needed them.
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