This is a cylinder honing tool or glaze buster, so if your barrel does not really need a rebore, but you want to fit new rings, this tool will take the glaze off the barrel and ensure a good seal. SO it can be used for honeing and deglazing cylinders in 2 and 4 strokes. Has flexible shaft and cutting pressure adjuster. Will work with cylinders from 50mm to 180mm diameter.

The model I have has medium stones and I am not able to source the alternative stones