It took like million years to receive the order but finally i got it. I think it is due to Covid-19 caused that delay
The item works as described but there's a problem with the design. If the bit is placed in a drill, at higher speeds the screw bit that ties into the brush head will detached due to the opposite torquing of the drill and the threading of the bit into the brush head. The design would be better if the screw installed from the opposite end or it threading was done through the brush side.