Bolt & nuts tollerances test

This tollerances test gives you an idea about what tollerances you should use with bolt and nuts while designing a piece. the model offers 5 differen size from the smaller (actual size measured with a caliber) to the bigger one with an increment of a costant ammount of mm each. The number on the side states for the dimension of the smaller hole and the smaller exagon from side to side. the +number states for the mm increment between holes. the arrow indicate the direction smller-bigger. I also l