I have a friend that has been porting for over 40 years now and yup he showed me that sioux tool the other day has said it was very cheep but it works good and is small. As far as sanding he finnishes with a shaft he makes slit in the end of it then uses a strip of sand paper put through the slit and puts it in a air die grinder so it just flaps around it works good some times puts mothers polish on it as well.