Quick Edge Knife Sharpener is designed to sharpen kitchen, work, or outdoor sporting knives in under 10 passes. Every steel is different: strokes and effort needed to sharpen may vary. DO NOT use heavy pressure, it will risk damaging your blade or the sharpener; not to mention for the safety of the user, as well.FeaturesReplaceable Carbide Pull-Thru style sharpening elementErgonomic Plastic molded housingFinger guard and thumb restRight or Left handed useSharpening angles are pre-set at 22.5Adeg to achieve a 45Adeg inclusive angle.InstructionsUSING YOUR QUICK EDGE SHARPENERStep 1 - Grip the sharpener with your fingers inside the finger guard and your thumb resting against the thumb guard.Step 2 - Place knife on a flat, solid surface cutting edge up. Let about 1/2" of the blade extend beyond the edge of the surface. Hold the knife steady with one hand as you begin to sharpen with the other.Step 3 - Place the "V" in the head of the Quick Edge Sharpener over the b...