Diamond Sharpener for Scissors, Large Size This is what you need to keep your blades sharp. How to use: Hold the tool you want to sharpen with one hand, and set the B-Sharp XL to the bevel angle of the blade. Sharpen the B-SharpJXL parallel to the bevel of the blade at an angle of about 23 degrees. Repeat until a small burr is formed at the tip of the blade. Turn the tool over and sharpen the B-SharpXL flat against the inner side of the blade Wipe the burrs. B-NEW sharpener (regular size), cleaner and oil set sold separately.