B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
B23D15/00—Shearing machines or shearing devices cutting by blades which move parallel to themselves
B23D15/06—Sheet shears
B23D15/08—Sheet shears with a blade moved in one plane, e.g. perpendicular to the surface of the sheet