Not suitable for gigabit

After just a few punch-downs, the punch-down tool started falling apart. The screw holding the cheap chassis together started coming out at a weird angle and I can't seem to fix it. The cable tester counts 1-8 green but that doesn't guarantee the connection works for gigabit. Some of my wired connections test "OK" but apparently not well enough for the full throughput. The crimper tool also breaks the tabs on my connectors occasionally when I squeeze. Maybe I'm not using this correctly, but it's impossible to know because there are no instructions with the kit in the first place. The only instructions included are for the tester which are clearly translated and very confusing. This is a very cheap kit overall, I'm going to return it.

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