Infinity 1/8th wheel reamer

Creation Model have released this Infinity wheel reamer to widen the hole diameter of 1/8 GP racing car wheels to the optimal size (12mm). If the wheel and axle shaft are too tight, it can cause problems such as not being able to install the wheel correctly or not being able to change tires efficiently during pit stops. This wheel reamer is used by threading it through the hole in the wheel while turning it.

Source: Creation Model [creationmodel.net]