Review on Cutting Made Easy: OriGlam Thread Cutting Stainless Metric – Unbeatable Deal! by Eric Speers

Good. It has many sizes, SAE and metric. The tool is a bit small and it's all packed in a small package. It would be much better if they made it longer and thicker. But it seems that all thread sizes exist. Tip: Use the taps that come with your die set to find the correct thread size. One of these will fit, or you're just not the right size. Therefore, you need this tool to determine the right faucet that you need to buy.