Sharp tools make for easier work, healthier gardens, and healthier plants. Fiskars Diamond-coated Blade Sharpener (6 in.) is a convenient solution to help you maintain the sharpness of your gardening tools. The diamond coated steel file easily removes nicks and burrs and restores blade sharpness in just a few passes. The unique design of our Blade Sharpener makes it easy to keep all of your favorite pruners, hedge sheers, snips, and more in top condition. Using the textured diamond side of the file, make long, straight strokes on the bevel edge of the blade moving from the pivot toward the tip. Work down the edge of the blade, using this technique three to five times. Flip the blade over and run the file over the flat side of the blade once to remove any burrs caused by sharpening. This product has a full lifetime warranty.