SHARPENING STEEL IS USED FOR REMOVING TINY PIECES OF METAL FROM THE EDGES OF BLADES. SHARPENING STEEL HAS LIMITED USES FOR EXTREMELY BLUNT BLADES, BUT IS GREAT FOR ROUTINE KNIFE BLADE MAINTAINENCE.  THESE SHARPENING STEEL ARE BEST USED FOR SHARPENING KNIVES, BUT CAN ALSO BE USED TO SHARPEN SCISSORS, WHETHER THEY ARE KITCHEN SHEARS OR YOUR REGULAR, ALL-PURPOSE TYPES OF SCISSOR.