Patent attributes
It is determined whether a power tool is suitable for a work description for which the power tool is used or not, and when it is not suitable for the work description, a suitable power tool is selected and presented to a user. The power tool has a memory, and data concerning a work record is stored in the memory. When the power tool is connected to an assist apparatus installed in a shop or the like, the data concerning the work record is read out from the memory, and the work description is estimated according to a program run in the assist apparatus. Then, it is judged whether the power tool is suitable for the estimated work description or not. When the power tool is not suitable for the work description, a power tool suitable for the work is selected from a previously stored database and presented to the user.
