Patent ID: 7338388

Claim:
A golf club head comprising: a face insert arranged for impacting a golf ball, the face insert having an inner surface and an outer surface; the face insert varying in thickness and having a central thickened region surrounded by a transition region tapering from the central thickened region to a thinner peripheral region, a first circumferential intersection between the thickened region and the transition region, and a second circumferential intersection between the transition region and the peripheral region; the inner surface of the face insert having a plurality of tool channels formed therein, the plurality of tool channels extending radially outward from the first circumferential intersection toward and through the transition region and the peripheral region; the first circumferential intersection having a first major axis and a first minor axis; the second circumferential intersection having a second major axis and a second minor axis, the second major axis being equal to the first major axis plus a predetermined distance and the second minor axis being equal to the first minor axis plus said predetermined distance; and the first major axis being from 0.65 to 1.05 inches and the first minor axis being from 0.25 to 0.45 inches.