Imagine trying to open shellfish with your bare hands and it practically makes your fingers hurt. Oysters like clams need a little assistance to open. The Dexter-Russell 4†Boston-Style Oyster Knife – Sani-Safe Series (S120) offers an excellent tool for prying open stubborn oyster shells. This knife features a high-carbon Boston-style blade which is four inches long narrow and rounded at the tip. Knives like this are made for prying and digging not slicing and cutting. The Grip-Tex handle allows slip-free usage.