Abstract: Disclosed herein are embodiments of iron-type golf club heads that include weight reducing features in the topline region of the club head that facilitate changing the Z-up location of the club head. In some embodiments the body includes a weight reducing feature in a topline weight reduction zone of the club head that extends over the entire face length from the par line to the toe portion ending at approximately the Z-up location of the iron type golf club head. The weight reducing feature results in a mass savings of about 2 g to about 20 g, and a Zup shift of about 0.5 mm to about 2.0 mm.

Abstract: Disclosed herein are embodiments of iron-type golf club heads that comprise weight reducing features in the topline region of the club head that facilitate changing the Z-up location of the club head. In some exemplary embodiments, the body comprises a weight reducing feature in a topline weight reduction zone of the club head that extends over the entire face length from the par line to the toe portion ending at approximately the Z-up location of the iron type golf club head. The weight reducing feature results in a mass savings of about 2 g to about 20 g, and a Zup shift of about 0.5 mm to about 2.0 mm.

Abstract: Disclosed herein are embodiments of iron-type golf club heads that comprise weight reducing features in the topline region of the club head that facilitate changing the Z-up location of the club head. In some exemplary embodiments, the body comprises a weight reducing feature in a topline weight reduction zone of the club head that extends over the entire face length from the par line to the toe portion ending at approximately the Z-up location of the iron type golf club head. The weight reducing feature results in a mass savings of about 2 g to about 20 g, and a Zup shift of about 0.5 mm to about 2.0 mm.

Abstract: Disclosed herein are embodiments of iron-type golf club heads that comprise weight reducing features in the topline region of the club head that facilitate changing the Z-up location of the club head. In some exemplary embodiments, the body comprises a weight reducing feature in a topline weight reduction zone of the club head that extends over the entire face length from the par line to the toe portion ending at approximately the Z-up location of the iron type golf club head. The weight reducing feature results in a mass savings of about 2 g to about 20 g, and a Zup shift of about 0.5 mm to about 2.0 mm.

Abstract: Disclosed herein are embodiments of iron-type golf club heads that comprise weight reducing features in the topline region of the club head that facilitate changing the Z-up location of the club head. In some exemplary embodiments, the body comprises a weight reducing feature in a topline weight reduction zone of the club head that extends over the entire face length from the par line to the toe portion ending at approximately the Z-up location of the iron type golf club head. The weight reducing feature results in a mass savings of about 2 g to about 20 g, and a Zup shift of about 0.5 mm to about 2.0 mm.

Abstract: Disclosed herein are embodiments of iron-type golf club heads that comprise weight reducing features in the topline region of the club head that facilitate changing the Z-up location of the club head. In some exemplary embodiments, the body comprises a weight reducing feature in a topline weight reduction zone of the club head that extends over the entire face length from the par line to the toe portion ending at approximately the Z-up location of the iron type golf club head. The weight reducing feature results in a mass savings of about 2 g to about 20 g, and a Zup shift of about 0.5 mm to about 2.0 mm.

Abstract: Disclosed herein are embodiments of iron-type golf club heads that comprise weight reducing features in the topline region of the club head that facilitate changing the Z-up location of the club head. In some exemplary embodiments, the body comprises a weight reducing feature in a topline weight reduction zone of the club head that extends over the entire face length from the par line to the toe portion ending at approximately the Z-up location of the iron type golf club head. The weight reducing feature results in a mass savings of about 2 g to about 20 g, and a Zup shift of about 0.5 mm to about 2.0 mm.

Abstract: Disclosed herein are embodiments of iron-type golf club heads that comprise weight reducing features in the topline region of the club head that facilitate changing the Z-up location of the club head. In some exemplary embodiments, the body comprises a weight reducing feature in a topline weight reduction zone of the club head that extends over the entire face length from the par line to the toe portion ending at approximately the Z-up location of the iron type golf club head. The weight reducing feature results in a mass savings of about 2 g to about 20 g, and a Zup shift of about 0.5 mm to about 2.0 mm.

Abstract: Disclosed herein are embodiments of iron-type golf club heads that comprise weight reducing features in the topline region of the club head that facilitate changing the Z-up location of the club head. In some exemplary embodiments, the body comprises a weight reducing feature in a topline weight reduction zone of the club head that extends over the entire face length from the par line to the toe portion ending at approximately the Z-up location of the iron type golf club head. The weight reducing feature results in a mass savings of about 2 g to about 20 g, and a Zup shift of about 0.5 mm to about 2.0 mm.

Abstract: Disclosed herein are embodiments of iron-type golf club heads that comprise weight reducing features in the topline region of the club head that facilitate changing the Z-up location of the club head. In some exemplary embodiments, the body comprises a weight reducing feature in a topline weight reduction zone of the club head that extends over the entire face length from the par line to the toe portion ending at approximately the Z-up location of the iron type golf club head. The weight reducing feature results in a mass savings of about 2 g to about 20 g, and a Zup shift of about 0.5 mm to about 2.0 mm.

Abstract: Disclosed herein are embodiments of iron-type golf club heads that comprise weight reducing features in the topline region of the club head that facilitate changing the Z-up location of the club head. In some exemplary embodiments, the body comprises a weight reducing feature in a topline weight reduction zone of the club head that extends over the entire face length from the par line to the toe portion ending at approximately the Z-up location of the iron type golf club head. The weight reducing feature results in a mass savings of about 2 g to about 20 g, and a Zup shift of about 0.5 mm to about 2.0 mm.

Abstract: Disclosed herein are embodiments of iron-type golf club heads that comprise internal features in the hosel and/or heel regions of the club head that facilitate changing the orientation of the hosel bore relative to the front face of the club head. In some exemplary embodiments, the body comprises a heel cavity in a hosel/heel portion of the club head that extends from a body cavity behind the front face into the hosel adjacent the bore. In other embodiments, the hosel bore comprises a groove or cavity extending below where a distal tip of a shaft is positioned. These internal hosel bending features can reduce the amount of material in the club head in a desired hosel/heel region to facilitate post-manufacturing bending of the club head in that region.

Abstract: A putter head comprising a body having an open, frame-like structure having an improved mass distribution for optimizing the moment of inertia and placement of the center of gravity. The body includes a front portion, a rear portion, toe and heel portions extending between and interconnecting respective ends of the front and rear portions, and a central portion interconnecting the front and rear portions along the longitudinal axis of the body. A first main opening of the body is bounded by the toe portion, the central portion, and part of the front portion. A second main opening of the body is bounded by the heel portion, the central portion, and part of the front portion. The heel and toe portions desirably are formed with respective elongated openings extending substantially the entire lengths of the heel and toe portions.