The 5/16" Foot Plate Hook, 0.4mm Tip, Angled Up is a specialized surgical instrument used primarily in otologic surgeries, particularly in stapedectomy and other procedures involving the ossicular chain or the footplate of the stapes. The 0.4mm tip provides a fine, sharp point for delicate manipulation and dissection of small structures, while the angled up design allows the surgeon to work in restricted or difficult-to-reach areas around the footplate.