Disclosed herein is a golf club head comprising at least one crown opening and at least one crown insert attached to the body and covering the at least one crown opening. The golf club head further comprises at least one sole opening and at least one sole insert attached to the body and covering the at least one sole opening. The golf club head additionally includes at least one weight member configured to clamp first and second ledges at selected locations along a sliding weight track. The golf club head also comprise a coefficient of restitution (COR) feature located on the sole of the golf club head. The at least one crown insert is formed from a composite material having a density between 1 g/cc and 2 g/cc. The at least one sole insert is formed from a composite material having a density between 1 g/cc and 2 g/cc.

A golf club head includes a club body having a crown opposite a sole, a toe end opposite a heel end, a back end, and a hosel. The golf club head also includes an adjustable weighting system positioned on the club body, the adjustable weighting system includes a single channel and a member that is received by the single channel and fastened to the club body, where a plurality of weights are coupled to the member. The golf club head can additionally or alternatively include a face angle adjustment system positioned on the sole, the face angle adjustment system includes a member that is removably received by the single channel and fastened to the sole, the member includes a first end member and a second end member, wherein the member is configured to be repositioned within the channel to adjust a resting face angle of the golf club head.

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.

A golf club head includes a club body having a crown opposite a sole, a toe end opposite a heel end, a back end, and a hosel. The golf club head also includes an adjustable weighting system positioned on the club body, the adjustable weighting system includes a single channel and a member that is received by the single channel and fastened to the club body, where a plurality of weights are coupled to the member. The golf club head can additionally or alternatively include a face angle adjustment system positioned on the sole, the face angle adjustment system includes a member that is removably received by the single channel and fastened to the sole, the member includes a first end member and a second end member, wherein the member is configured to be repositioned within the channel to adjust a resting face angle of the golf club head.

Embodiments of golf clubs with adjustable loft, lie, head mass and methods of manufacturing golf clubs with adjustable loft, lie, and head mass are generally described herein. Other embodiments can be described and claimed.

Disclosed herein are embodiments of adjustable golf clubs comprising features which allow for the adjustment of a lie angle, a loft angle, or both a lie angle and a loft angle of the golf club. In some embodiments, a golf club head includes a body and a hosel, the hosel including an adjustment screw which can be tightened or loosened to adjust the lie and/or loft angles of a golf club head. In some embodiments, certain angles of a golf club head's geometry can be continuously adjustable through a predetermined range of angles.

In a golf club head assembly a body member has a top-forward angled front face, the face comprising a plurality of generally forward-facing teeth. The golf club head assembly further comprises a loft angle adjustment mechanism attached to the body member for adjusting a loft angle of the face. The mechanism includes a hosel element releasably attached to a bar rotatably mounted to an upper side of the body member parallel to the face. The bar is rotatably journaled or mounted in a pair of bar supports attached to the body member. Set screws reside in threaded holes in the bar supports, the set screws operable to releasably lock the bar in a selected orientation relative to the body member, where the selected orientation of the bar corresponds to and determines the loft angle of the front face. The forward angle of the front face, the angles of the teeth, and loft angle of the face are jointly chosen to impart a pure rolling motion onto a struck golf ball.

Embodiments of golf coupling mechanisms are presented herein. Other examples and related methods are also disclosed herein.

Various embodiments of a golf club head comprising a body having a strike face, a heel portion, and a toe portion, a hosel having a body with a first end, extending from the heel portion of the body of the club head, and a second end, configured to receive a shaft, a cavity positioned adjacent to the body of the hosel, and an insert configured to be secured within the cavity are described herein.

Disclosed is a putter including an interchangeable sleeve mechanism capable of easily replacing and mounting a shaft, the putter comprising a main body part, a downward extension part, a blade formation part having a plate-shaped structure which extends to a predetermined length rearward from a lower end of the downward extension part and has an area having a predetermined size, a plurality of weight mounting grooves disposed to be spaced a certain interval from each other in an upper surface or a side surface of the blade formation part and configured to bind weights in a detachable structure, and a sleeve mechanism mounted in a structure detachably attached to the binding groove of the main body part, having a block structure extending to a predetermined height upward, and formed with a shaft binding fastening hole recessed to a predetermined depth in an upper end surface.