Abstract: The invention disclosed herein is directed to a golf putter with a ball-striking face that has a plurality of grooves formed therein. In the preferred embodiment, the grooves are equally spaced concentric grooves with a common center that lies along a line parallel to a line passing through the sweet spot of the putter.

Abstract: An oversized metal wood golf club head having a ball striking face, a bottom sole portion and a upper portion or crown. The club head is molded or formed in substantially one piece, the crown having an opening which is sealed by securing a crown plate in the opening. The metal wood has a nonmetallic insert secured to a cavity formed in the ball striking face and reinforced by ribs on the interior of the face and the walls of a cavity formed in the club striking face. The insert is secured in the cavity by adhesion which is enhanced by channels formed in the insert cavity and hollow columns formed in the insert.