Patent ID: 8197355

Claim:
An iron-type golf club head comprising: a body composed of a stainless steel material and having a front wall, a top portion, a heel portion a toe portion and a sole portion, the sole portion extending rearward from the front wall and having a main surface, coated stepped surface and an edge between the main surface and the coated stepped surface, wherein the sole portion has a length ranging from 7.5 cm to 10.0 cm and a width ranging from 1.0 cm to 4.0 cm, wherein the main surface has a width ranging from 1.0 cm to 2.5 cm, wherein the stepped surface has a width ranging from 0.25 cm to 1.5 cm, and wherein the edge has a height ranging from 0.3 cm to 0.5 cm; a rear cavity defined by the front wall, the top portion, the heel portion, the toe portion and the sole portion, wherein a perimeter of the rear cavity is composed of a plurality of segments, a first segment extending along the top portion, a second straight segment extending along the heel portion, a third straight segment distinct from the second straight segment and forming an included angle greater than zero with respect to the second straight segment and extending along the heel portion, a fourth straight segment extending along the toe portion, a fifth straight segment distinct from the fourth straight segment and forming an included angle greater than zero with respect to the fourth straight segment and extending along a toe portion, and a sixth straight segment extending along the stepped surface of the sole portion; wherein the sole is extended away from the face to improve the mass properties of the center of mass, the mass distribution, and for clearance between the club head and the turf during the follow through of a golf swing.