Keeping the bare edge line neat on a black blade
Every sharpening leaves a thin strip of bright steel along the edge of a black-coated blade, and that silver line shows every wobble in your angle. Hold the 18 cm blade at one steady angle, around 20 degrees, and give each side the same number of strokes: the line then stays narrow and even. On a Pakistan fixed blade knife with a matte black finish, that clean bevel is the first detail a customer notices.
