Examples of golf club heads and methods to manufacture golf club heads are generally described herein. In one example, a body portion of a golf club head may include a cavity having an opening and an interior structure defined by a wall portion and a base portion. A hosel portion may include an insert portion and a neck portion extending therefrom. The hosel portion may be attached to the body portion by an interference fit between the neck portion and the opening of the cavity. The insert portion may be received inside the cavity and may be spaced apart from the interior structure of the cavity. A space between the insert portion and the interior structure of the cavity may be partially or entirely filled with an adhesive to hold the hosel portion in place. Other examples may be described and claimed.

Examples of golf clubs and methods to manufacture golf clubs are generally described herein. In one example, a golf club may include a golf club head having a body portion and a center of gravity. A center portion of the body portion may extend from a front portion of the body portion to the rear portion of the body portion. A recess portion may be defined by the center portion. A hosel portion may extend upward from the recess portion. The hosel portion may be positioned at the center of gravity of the body portion. A shaft may be coupled to the hosel portion and extend from the hosel portion. The shaft may have a center axis that passes through the center of gravity of the golf club head. Other examples of golf club heads and methods to manufacture the same may be described and claimed.

A putter head including a replaceable intermediate member that can be customized in size, shape, and performance according to user's preference is provided. A putter head according to an embodiment includes a front member having a shaft attachment portion and a front surface constituting a face surface, a rear member attached to a rear of the front member, and an intermediate member that is disposed between the front member and the rear member and is replaceable, and the intermediate member is selectable from a plurality of intermediate members formed in different sizes, shapes, or materials.

A golf putter head having adjustability in weight and center of gravity. The putter head has a ball-striking front portion with a club face defining its width and height, a heal, a toe, and top and bottom surfaces defining the length of the front portion. The putter head has a front central axis extending through the center of gravity of the front portion and parallel to the top and bottom surfaces. A weight-and-balance-adjustment rear portion is connected to the front portion, which has a plurality of lengthwise-extending housings. Each housing includes an internal cavity constructed and arranged to removably contain at least one weighted slug. The putter head has a first center of gravity when the internal cavities are empty. The first center of gravity can be moved along the length, width and height of the putter by inserting weighted slugs in one or more of the cavities.

Customizable golf putters are disclosed. The putters include a putter face; a putter head that is configured to be reversibly connected to the putter face (with the putter head being selected from a plurality of different putter head styles); and a hosel that is configured to be reversibly connected to any of a plurality of hosel receiving channels that are accessible on a top surface of the putter head (the hosel is also selected from a plurality of different hosel styles). The golf putters further include a threaded shaft connector that is configured to reversibly connect the hosel to a putter shaft. In addition, the golf putters include one or more peg fillers, which are configured to be inserted into empty hosel receiving channels.

Putter type club head with vertical groove patterns are described herein. A putter type club head comprises a putter face having a plurality of first curved grooves and a plurality of second curved grooves. The first curved grooves and the second curved grooves intersect each other at a plurality of points across the putter face. The width and depth of the first curved grooves and the second curved grooves can vary across the putter face in a direction extending from a heel end to a toe end, and/or in a direction extending from a top rail to a sole. The curved groove pattern provides consistent ball speed performance for any impact location on the putter face.

Examples of golf club heads and methods to manufacture golf club heads are generally described herein. In one example, a body portion of a golf club head may include a cavity having an opening and an interior structure defined by a wall portion and a base portion. A hosel portion may include an insert portion and a neck portion extending therefrom. The hosel portion may be attached to the body portion by an interference fit between the neck portion and the opening of the cavity. The insert portion may be received inside the cavity and may be spaced apart from the interior structure of the cavity. A space between the insert portion and the interior structure of the cavity may be partially or entirely filled with an adhesive to hold the hosel portion in place. Other examples may be described and claimed.

Embodiments of putter golf club heads with an elastomer is enclosed herein. Other embodiments and methods may be described and claimed.

Examples of golf clubs and methods to manufacture golf clubs are generally described herein. In one example, a golf club may include a golf club head, a hosel portion, and a shaft. The hosel portion may be positioned rearward of a center of gravity of the body portion. The shaft portion may be coupled to the hosel portion and may have a first shaft portion and a second shaft portion. The first shaft portion may extend from the hosel portion and tilt toward the face portion with no lateral tilt toward a toe portion or a heel portion of the body portion. The second shaft portion may extend from the first shaft portion toward the heel portion and toward a face portion of the body portion. Other examples of golf club heads and methods to manufacture the same may be described and claimed.

Embodiments of putter-type golf club heads with adjustable loft and lie and methods of manufacturing of the same with adjustable loft and lie are generally described herein. These embodiments relate in particular to a putter-type club head with an adjustment portion that allows a user to change the loft and lie. The separate adjustment portions of the putter-type club head can couple the upper hosel to the body at a plurality of positions. An insert part of the adjustment portion has an upper section for receiving the upper hosel portion, a middle section, and a lower hosel portion. The sections of the adjustment portion can be coupled together by a fastener so that the sections are rotationally movable.