An automotive parts kit differentiation system and method includes a plurality of different types of parts kits, wherein each type of kit includes a base and a plurality of automotive parts removably contained by the base. The equipment is made up of a chassis supporting a closed body that is opened at both ends and has a back cover to close the body and a moveable front compression plate. An angle sensor is provided which includes Hall element sensors provided on a support shaft and magnets provided on a core pipe of the paper roll.