Giving 4 stars because the threaded head should be a regular bit in my opinion. The thread loosened a few times and fell off the bit. Some teflon tape or loctite before hand would probably have solved this issue. I also had an issue with it removing a sticky residue from double sticky tape, it was literally just clear residue, and I accidentally wet it forgetting it was there before I hit it with the wheel, which might have been why it didn't work.
Worked great on double sticky tape that was left on my vehicle. I found the best way to use this was to hold it at a 45 degree angle so just the edge of the wheel was making contact and go perpendicular across the tape versus with the tape, and using a corded drill with higher RPM's than battery drill. I couldn't get enough torque and the batteries died too quick.
Be sure to wear eye protection and/or face visor, this thing sends little beads of hot rubber and hot adhesive everywhere. There will be little beads of rubber all over you and the vehicle and any minimal adhesive residue left behind was easily cleaned up with Goo Gone and a paper towel.
I was able to do all sides of my vehicle with this and maybe went through about a quarter of the blade. This thing lasts pretty good.
Would buy again.