Features Resources CAD Files All 1/8 shank Hard Porcelain Bond, Holds it shape extremely well Semi-Friable Aluminum Oxide Abrasive 120 grit 48 piece mounted stone set contains 6 each of the following popular shapes: B44, B52, B123, W144, W152, W162, W176, W200. Made in the U.S.A. View in Catalog IGS SAT SLDPRT STEP X_T PDF 3D