Keyset carob StanleyMaxiDrivePlus4-87-051 has left the most current versions of the hand tool, based on the wishes of the customers themselves. That is why the manufacturer has provided a set of 6 units of most running models on the basis of the size preferences of the majority of customers. However, the starter kit does not say that there can not be purchased separately to add a few items, based on your personal needs. This addition is only welcome. The only rule is to add keys by the same company as the main sales pack.