Patent ID: 7022031

Claim:
An iron-type golf club head having sole, heel and toe sides comprising: a face portion having a front surface which defines a club face for hitting a ball, the face portion being provided with a thin part which is defined as having a thickness of not more than 3 mm, wherein the thin part defines at least a part of said club face including a sweet spot, and an annular part surrounding the face portion and supporting a back surface circumferential portion of the face portion, the annular part having a thickness greater than the thin part and having a first depressed portion beneath the sweet spot on the sole side of the golf club head, and the annular part has a second depressed portion on the toe side of the golf club head; and wherein the distance across the thin part measured in every direction passing through the sweet spot becomes a minimum L 1 in a certain direction, and the minimum L 1 is not less than 30 mm.