GOLF CLUB HEAD

An iron-type golf club head includes a striking face comprising a face center and a variable face thickness such that the striking face has a perimeter region proximate an outer boundary of the striking face and a maximum thickness of the striking face located in the perimeter region. A shell of the golf club head includes a crown, a sole opposite the crown, a heel, a toe, and an internal weight pad located on a lower portion of the shell. A moment of inertia about a vertical axis through the center of gravity of the golf club head is at least 2900 g*cm2. In another aspect, the striking face includes a center region having a first thickness T1, an intermediate region surrounding the center region having a second thickness T2, and a perimeter region surrounding the intermediate region having a third thickness T3, and T2