A putter-type golf club head and method of manufacturing said golf club are herein disclosed. The putter has a body, a face surface, a rear surface, a sole surface, a crown surface, and a heel surface. To reduce the reflective glare off the crown surface and to improve the ease of alignment, the putter includes various curved boundaries between surfaces of the club head. Multiple sections of the crown connect with the heel surface through curved transition regions, which reflect the light differently than the crown surface and thus serve as alignment aids.

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

A golf club shaft system and golf club shaft possessing unique flexural and torsional rigidity profiles, while providing significant adjustability to fine tune the shaft to a particular golf swing.

A head includes a head body and a face plate. The face plate includes a plate front surface and a plate rear surface. The head body includes an opening at which the face plate is disposed, a back support portion that includes a back receiving surface abutting on an outer peripheral edge portion of the plate rear surface and that supports the face plate from a back side, a face outer portion that is a part of a hitting face and that is located on a face peripheral side relative to the plate front surface, and a body groove that is located on the back side of the face outer portion and that is recessed toward the face outer portion.

A golf club head includes a weight and a head body defining a channel configured to receive the weight. A position of the weight within the channel is magnetically adjustable using an adjuster that is separate from the head body during use of the golf club head.

A multiple purpose tool assembly for attaching a variety of implements to a handle includes a handle and a rod that is removably coupled to the handle. The rod has a first portion that is slidably coupled to a second portion such that the rod has a telescopically adjustable length. A lock is removably coupled to the second section of the rod. The lock is biased into a locking position for retaining the rod at a selected length. Additionally, the lock is urgeable into an unlocked position thereby facilitating the length of the rod to be adjusted. A plurality of attachments is each selectively and removably attached to the rod for performing specific tasks.

A tool includes a divot repair tool, a ball marker that may be decorated in a variety of designs, and a shaft clip to removably attach the golf accessory to a golf putter shaft. The tool is useful for providing a golfer with an easily accessible golf accessory on the putting green, as the device is designed to remain stationery on the golf putter shaft during use of the golf putter.

A process for manufacturing a putter with a bi-material shaft is disclosed herein. The putter comprises a putter head, the bi-material shaft, a mass member and a grip. The bi-material shaft comprises a body with a tip end and a butt end. The body comprises a metal section extending from the tip end to a connection point, and a composite section extending from the butt end to the connection point. The mass member is positioned within an opening at the butt end of the shaft. Mass from the shaft is transferred to the club head and the mass member in the butt end of the shaft.

Provided is an adjustable putter grip. The adjustable putter grip includes a first grip member coupled adjacent a first end of a putter shaft. A putter head is coupled to a second end of the putter shaft. The adjustable putter grip also includes a second grip member coupled to the putter shaft between the first grip member and the second end of the putter shaft. The first grip member and the second grip member are rotatable with respect to each other to adjust grip position, the second grip member is rotatable with respect to the first grip member to adjust grip position, or the first grip member is rotatable with respect to the second grip member to adjust grip position. A method of forming a custom grip or custom fitting of a golfer is also disclosed.

Provided is a digital putting diagnosis device for diagnosing putting, which is provided in a putter head of a golf putter, including: a 9-axis sensor unit for detecting position and movement of the putter head, the 9-axis sensor unit detecting rotation of the putter head in a roll direction, a pitch direction, and a yaw direction; a control unit for controlling the posture of the putter head at the time of addressing the putting and the swing path of the putter head during putting to be displayed in real time by using the detected signal of the 9-axis sensor unit according to the movement of the putter head; and a display unit for displaying the posture of the putter head and the swing path of the putter head under the control of the control unit.