| 摘要 |
A head for a golf club used for hitting balls long distances, or for putting, has a hitting or contact surface formed by an insert placed within a pocket formed within the club head face. The insert has at least a surface layer made of polycrystalline diamond or cubic boron nitride. The insert may be polished very smooth to place less backspin on the ball and reduce surface flaws. The edges of the insert may also be rounded or chamfered to reduce chipping or cracking of the insert. Furthermore, the pocket into which the insert is set may be reinforced to reduce deformation of the pocket during ball contact that places stress on the insert.
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