Dual grit sharpening files: one side has 400 grit and the other 1000 grit for versatile use in rough shaping and fine finishing. The coating technology provides durable abrasion capability for blade sharpening, chisel restoration, and scissor maintenance without wearing down quickly. Ergonomic handle and size: thoughtfully designed handles prioritize comfort during extended sharpening, reducing hand fatigue and improving control. Each sharpening file measures 8.66 x 1.37 x 0.78 inches with a practical working area of 4.92 inches, enabling efficient maneuverability while keeping a secure grip throughout sharpening tasks. Professional sharpening results: these files deliver faster, more consistent results across blades, planers, chisels, and scissors compared with traditional whetstones. The precision abrasive surfaces quickly restore dull edges to like sharpness while minimizing the risk of edge damage. Dry sharpening technology: these files work completely dry, with no soaking or continuous water application required. This waterless operation keeps the workspace cleaner, eliminates slurry, and helps protect tools from water damage during maintenance. Use scenarios Quick touch ups of kitchen blades and scissors for everyday use. Restoring chisels and planer blades for woodworking projects. Regular maintenance of other cutting tools in the home, workshop, or garage.