Abstract: An electrically insulated hand tool with a detent mechanism allows for rotation and/or for the transfer of force in a specific direction only, with the direction of rotation and/or the direction of the transfer of force is determined through two pushbuttons. The electrically insulated hand tool with a detent mechanism includes, in the body of the tool, a top closed by an upper sheet metal cover, and from below, by a lower sheet metal cover, and a switching mechanism controlled by two switching pushbuttons which are covered with a soft membrane, with the whole tool being covered with an insulating coating.

Abstract: The invention refers to the screwdriver shank with a detachable attachment that allows for easier tightening and loosening by application of a spanner. The shank (1) of the screwdriver with a detachable attachment (2), referred to in this invention is on one end flat (1a), provided for mounting of the detachable attachment (2), that is externally angular and whereof the opening (2a) is of such shape that conforms to the shape of the part (1a) of the shank (1) and that the detachable attachment (2) fits to the contact of the shank (1) and of the flat part (1a).