Patent ID: 8096897

Claim:
A club-head for a golf club, comprising: a hollow body defining a front opening having a face support; a face plate affixed to the face support and covering the front opening; a hosel; and a face portion, wherein the face portion comprises the face plate, the front opening face support, and a portion of the hollow body of the golf club head located from a tangent plane of the face plate to approximately 12 mm rearward from the tangent plane of the face plate but not including the hosel; wherein the face portion of the club-head has a face area (A f ) and a face portion mass (M f , in grams), A f ≧5400 mm 2 and a club-head COR≦0.830, and the face mass M f is below M f −0.0072(A f )+18; and wherein the body comprises body walls defining an external contour including a transition zone in which the external contour transitions to the face plate, and the body walls at the transition zone comprise a forward wall and a peripheral member located adjacent the front opening, each having respective interior surfaces that are joined together with a substantially constant inside radius in a range of 1.3 and 1.5 mm.