Bayonet Bone FileBayonet Bone File A bone file is a surgical instrument used to smoothen, shape, and remove bone tissue during orthopedic procedures. It typically consists of a handle and a metal blade with teeth. The bayonet shank design refers to the way the blade angles relative to the handle, resembling a bayonet knife. Here are some details and variations of bayonet bone files: Blade type: Bone files can have different blade shapes, such as flat or half round.