An iron-type golf club head and set having multi-material construction including a carbon steel alloy body and a thin high strength alloy face. A passageway extends from a closed void behind the face, and is accessible from an exterior of the body. The passageway establishes a passageway axis, and at least a portion of the passageway axis intersects the face at an axis-to-face intersection point. The set includes close control of the opening/closing moment of inertia and Ycg distance between club heads.