portions 5 and 7 resp are of substantially the same length or the open portions 7 are of a greater length recipients or compartments 9 for the parts of a set of tools are formed in at the part 1 a holding loop or handle 13 is formed flush at the planar side 11 of the part 1 into which the compartments are formed the holding loop 13 is provided on a side of the part 1 which is opposite the hinge portion 3 as illustrated the second part 20 of the box structured in accordance with the present invention is designed specifically with regard to the hinge portion 3 in the same manner as the portion 3 at the first part 1 described above accordingly these two parts 1 and 20 can be interconnected and connected together by a inserting of a releasable hinge pin 15 through openings 17 in each hinge knuckle 5 in the second part 20 compartments 9 39 are formed to correspond with the articles or tools which will be received therein accordingly the compartments 9 39 may have the same or different shape as the compartments 9 of the first part depending upon whether the second part 20 receives the same or a different set of articles specifically tool parts the lock or latch of the box parts 1 and 20 assembled to a box is realized e g by means of removable locking.