The cutting edges of the Spherical Concave Cutters below are rounded, as compared to the straight blades of Standard Concave Cutters. The results are spherical cuts which are round and hollow and heal with the most esthetic and least visible wounds. The solid stainless steel construction of our Master grade Spherical Concave Cutters has the feel of a fine surgical instrument and will provide a lifetime of superior performance and easy care. Small Master: 7/8" blades, 7" overall length