I got several chisles at a garage sale yesterday that are ground to a 20 degree angle. the faces of all the chisels were chipped and look like they had 32 tpi on the face. well I cleaned they up and tried one, edge rolled and chipped , the chisles have a blade about 6 inches long and thin. all have nice wood handles . I thought that they might be paring chisles , Is that the correct angle, or did I just end up buying nice wood handles.