A stationary knife assembly for a chopper assembly (46) of an agricultural combine (20) comprising a knife mounting assembly (51) and at least one counter knife bank or knife rank (100, 100, 200, 200), including a plurality of individual double-sided knife elements (80, 206) joined together, such as by a spline connector (128) that extends through aligned apertures (104) in the base body portions (102) of the knife elements (80), in an aligned columnar arrangement to form a knife formation that is connected to a support member (120), such as to an underlying member having an inverted U-shape, that is removably connectable to a depending side wall (58A, 58B) of the knife mounting assembly to permit initial use of the first cutting edges (108A, 208A) of the knife elements (80, 206), easy reversal of the counter knife bank (80, 206) at a later time, and subsequent use of the second cutting edges (108B, 208B) of the knife elements (80, 206).