Bone File #12CaDDP Elite USA Bone File #12CA is designed for use in manipulation of bone. This particular file is designed in a bell pattern and is double ended making it a versatile instrument that can be useful in a vast array of settings. One end is 5. 0 mm while the other is 7. 0 mm and both features cross serrations. This file can be useful in doing this such as filing down bone when doing grafting procedures or simply to reduce the jaggedness of bone and other