Patent ID: 8468679

Claim:
A method for manufacturing an iron-type golf club head, the method comprising: forming an iron-type golf club head body, the iron-type golf club head body having a striking plate with an exterior surface; machining a plurality of grooves into the exterior surface of the striking plate to create a machined striking plate; sandblasting the exterior surface of the machined striking plate to create a sandblasted striking plate; applying a coating in only each of the plurality of grooves of the sandblasted striking plate to create a coating-filled groove striking plate, each of the plurality of grooves of the coating-filled groove striking plate having a volume less than the volume of each of the plurality of grooves of the machined striking plate; wherein an edge deviation of each of the plurality of grooves is reduced from 0.0130 inch to 0.0104 or less after applying the coating.