Sharpening supplies clean and hone cutting edges to keep blades, chisels, and tools in good condition. They can also be used to hand debur small parts. Sharpening stones clean, hone, polish, and sharpen edges on tools such as knives, chisels, and gear teeth. Abrasive sharpening files sharpen cutting edges and debur, hone, and chamfer parts. Sharpening machines hold the cutting tool to renew cutting edges on drill bits, end mills, and knives so tools can make clean, accurate cuts. Hand sharpening tools manually sharpen knives, scissors, and other cutting tools.