PURPOSE: To provide a combination tool system that is able to use plural pieces of tools as being combined, and besides, there is no mistake in selection of setting spots.

CONSTITUTION: A body part 1 of a gripping part is made up of an outer member 1a and an inner member 1b, and a cover body part 2 is attached thereto with two hinge mechanisms 3a and 3b. In addition, a rectangular recess 5, a circular recess 6, a square recess 7 and triangular recess 8 for installing a tool holding part are all formed in the inner member 1b. As for tools to be combined in the gripping part, a cutter, a clipper, a scraper and rotary cutter are used, and the holding part of these tools is accorded with the form of each recess to be installed. Accordingly, there is no mistake in the position of each tool to be attached to the gripping part.