SAFETY KNIFE

The utility model relates to a cutter for accommodating a replaceable blade, which is provided with a shell, the shell is provided with a blade channel, the blade channel is used for inserting a blade with a clip recess, and the cutter is provided with a sliding block which moves along a movement track on the outer side of the shell along the shell. In order to move the blade from a stowed position in which the blade is inserted into the blade channel to a working position in which the blade protrudes from the opening of the blade channel, the slider carries a coupling element with a clip projection which engages in the clip recess in order to couple the slider to the blade, the tool has a tool change button. In order to achieve an advantageous improvement in use, it is proposed that the tool changing button has a locking section which protrudes into the movement track of the slide, the slide rests on the locking section in the final stage of the movement of the slide to the working position, and the locking section can be moved out of the movement track of the slide by actuating the tool changing button, therefore, the sliding block can move the blade out of the operation position to the tool changing position outwards, and the clamp protrusion is controlled to move out of the clamp recess.