Hand tool case holding device

A system, comprising:

• a hand tool case holding device including:
• a holding device housing;
• a case accommodating area;
• at least one charging coil for transferring energy into the case accommodating area in a direction perpendicular to a charging surface of the holding device housing, wherein the holding device housing has two case support surfaces causing a support force at least essentially parallel to the charging surface, wherein the case support surfaces are arranged on two opposing sides of the case accommodating area;
• a holding device which is (i) implemented separately from the case support surface, and (ii) provided for the purpose of detachably fixing a hand tool case in the case accommodating area of the holding device housing;
• and
• a hand tool case which has at least one holding device corresponding to the holding device of the hand tool case;
• and
• at least one holding unit provided for the purpose of latching the hand tool case at an external surface of the hand tool case in the case accommodating area, wherein the at least one holding unit is situated on sides of the holding device housing facing away from the case support surfaces,
• wherein the at least one holding unit includes an engagement hook which is connected to the hand tool case such that the at least one holding unit us movable around a pivot axis.