The biggest issue most people have when sharpening a knife is knowing if they are sharpening the knife at the correct angle.
Most stores carry a large range of Manual Pull Through Knife Sharpeners .
These sharpeners come in a variety of brands and use sharpening material (ranging from ceramic to industrial diamond) but they all set the angle for you to achieve the perfect edge.
See in store for the best pull through sharpener for your particular knife.
Please check with your local store about availability