The chefs knife is the main knife that you use in the kitchen. It can do 95% of what you need a knife for. It is used from chopping, slicing, dicing, mincing, and just about everything else. The only things (off the top of my head) that it is not suited for 9but if you are good can still be used for) are slicing bread, doing delicate work on small items (like turning radishes into flowers), filleting can cutting through big bones.