Putti Bone Rasp - Round BladesDDP Elite USA Putti Bone Rasp is an instrument ideally suited for use in surgeries that require handling and particularly mild reshaping of bone such as in neurosurgical or orthopedic surgeries. . This instrument is double ended and features one round blade and another half round. The unique design of this rasp is in the leap shaped silhouette that tapers from 11. 0 mm to 4. 0 mm for the round blade and from 15. 0 mm to 5. 0 for the half round that