The history of knife of Boning knife
Boning knife，It is also called a filet knife, but this filet mainly refers to the fish body. The blade is very narrow. It is an ideal tool for deboning and skinning fresh meat, such as beef legs and whole fish. 
The narrow, flexible blade is perfect for the job. The knife body is narrow, and the knife head can be fully controlled, and can even be tilted 180° to cut deep into the meat and cut tendons. Slide the knife parallel to the bone along the curvature of the bone without dulling the blade by cutting into the bone.