These are good basic end mills. If you're doing work that requires a few thousandths of precision, this isn't for you. If you're in significant manufacturing, this isn't for you. If you are looking for a basic end mill for basic hobby milling then this is excellent value for money but know there are much better tools out there but also at a much higher price point. I personally use them as a 6061 milling hobby and they always work well enough for my needs.
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