1. Chef knife.
Blade length: between 15-30cm, 20cm or so for the most common length of use.
Main function: Chef knife almost can do all the work. It is a universal knife. In the absence of knives in the case of a chef knife can basically solve all the basic preparatory work.
2. Deputy knife.
Blade length: between 10-18cm.
Main features: Vice knife is more suitable for some hands than the smaller female chef as a chef knife to operate.
3. Peeling knife.
Blade length: between 6-10cm.
Main functions: Peeling knife is mainly responsible for peeled and carved fruits and vegetables, but also can handle some very detailed and trivial things.
4. Boning knife.
Blade length: between 12-15cm.
Main features: Because the slender body is thin and light, it can be good for boneless meat, and even can handle birds and fish.