Stabilizing features in a wear member assembly

A wear member comprising:

• a front end and a rear end and a longitudinal axis extending therethrough, the rear end having a cavity formed therein, the cavity having rear portion and a forward portion, the cavity having two surfaces horizontal in cross-section and converging toward the longitudinal axis, and the cavity having four substantially planar surfaces, the four substantially planar surfaces being oblique in cross-section,
• a first two of the four substantially planar surfaces being disposed on a first lateral side of the two surfaces horizontal in cross-section, and a second two of the four substantially planar surfaces being disposed on a second lateral side of the two surfaces horizontal in cross-section;
• and
• an intermediate portion disposed between the rear portion and the forward portion, the intermediate portion comprising a different number of surfaces in cross-section than a number of surfaces of the rear portion and the forward portion in cross-section.