There is nothing unique about this bit that makes it more plastic friendly than any other HSS bit. I have special plastic bits that leave perfectly clean holes and this bit does NOT fall into that category. I tested this bit on 2mm thick ABS and [regardless of speed and pressure] it consistently left burrs on both sides. If your goal is to make clean holes in plastic that don't require sanding, I would strongly recommend NOT using it.
I have a sign company. I broke a piece of acrylic at a construction site trying to use a good quality standard bat (the sign cost me $250 to replace). But to make matters worse, when a well-gagged acrylic plate meets the grooves of a standard racquet, the plate spins and pinches you to your foot. This is the right tool for the job. It cuts through acrylic without cracking or pinching. I don't know if this is any better than other custom acrylic bits, but it worked for me.
This drill bit is advertised as for acrylic and plexiglass but I'm pretty sure it's just a good old drill. The drill bit I received was black and doesn't look anything like the one in the picture above. It left cracks and chips in every hole I drilled in the new Plexiglas for my boat (about 8 in total). $200 down the drain for this scam product. I had to test this on my old glass, but I trusted the list. Lesson learned. Do not buy this drill bit if you are drilling plexiglass or acrylic.