The object of the invention is a flat file which is suitable for lifting off films from intermediate layers.

The object of the invention is a flat file which is suitable for lifting off films from intermediate layers.

Surgical instruments, systems, and methods for performing an osteotomy are disclosed herein. A surgical system includes a body with a distal end, a proximal end, a first surface, and a second surface. The surgical system can include cutting blades positioned on the first surface and/or the second surface. The surgical system can include columns of cutting blades positioned on the first surface and/or the second surface. The surgical system can include rows of cutting blades positioned on the first surface and/or the second surface.