Designed to re-create the original bevel of a cutting edge, this three-stage sharpening system pre-sharpens a blade by removing the old edge, then re-sharpens the knife and hones and polishes it to razor-sharpness using 100 diamond abrasive disks. Magnetic guides ensure the blade is aligned at the perfect angle. Use on kitchen knives, fishing knives or pockets knives. Safe with top quality knives. Made in USA.