Cutter capable of preventing accidental slip-off

The utility model relates to the technical field of cutters. The utility model relates to a cutter, in particular to a cutter capable of preventing accidental slipping. The device comprises a cylinderbody, a piston cylinder with scales on the cylinder wall, and a tool apron, one end of the cylinder body is connected with a hook; limiting bases are welded to the side walls of the two sides of theother end of the cylinder correspondingly. Sliding blocks are welded to the side walls of the two sides of one end of the piston cylinder. The sliding block is slidably arranged on the outer wall of the limiting shaft. A spring is welded between the side wall of the piston cylinder and the inner wall of the cylinder body; a fixed disc is welded at the other end of the piston cylinder; insertion columns are arranged at the two ends of the fixing disc through fixing blocks. The inserting column is fixed in the limiting seat through a clamping block; compared with the prior art, the tool storagebox has the advantages that