My analysis of this product showed that it is not durable at all. It bent and broke after just a few uses, causing me to waste time and money. While it may be inexpensive, the quality is certainly not worth it. Industrial and scientific professionals should beware of this unreliable product.
Not sure what the previous reviewer is talking about. He may have used a portable router. I just carved an entire boat out of Lexan and acrylic on my CNC with this tool with no problems. The beat is still sharp. Great plastic bat, period.
this bit went straight through the plexiglas without any problems. A single flute leaves a slight swirl on the bottom cut but leaves the cut walls very smooth. I had to drive very slowly so there were no chips.