The uxcell ratchet wrench won't last long in a production environment, but that's not what it's designed for. It holds medium sized taps (about 3/8 inch or 8mm) fairly well, the ratchet mechanism works, the latch (sliding crossbar) provides a solid grip for turning the key and threading. But the quality problems are obvious from the start. First, the latch is not perpendicular to the key body and should be offset 4 or 5 degrees from 90 square. Second, the sliding ratchet selector began to slide quickly under the key's outer cover. Third, the knurled cylinder that squeezes the faucet jaws requires pliers to loosen the cylinder. Finally, the handle at the top of the wrench doesn't have a notch for tapping guide. In short, the wrench isn't expensive, it works well enough to thread aluminum and steel, and the ratchet is handy as a drill in a tight space like a press or lathe. The project requires over 100 tapped holes in aluminum. and structural steel. My prognosis: 2 or 3 such collars until the end.