Method for making golf club heads using polishing marks

A golf club head made by a method comprising the steps of:

• investment casting a golf club head to produce an as-cast golf club head having an outer as-cast surface, the club head having a final desired wall thickness at some portion thereof of from about 0.5 to about 0.7 millimeter;
• drilling plural polish marks into the outer surface to a depth selected to provide a final product thickness of about 0.5 to about 0.7±0.05 millimeter;
• performing an initial polish to remove the polish marks;
• and
• performing a second polish.

A golf club head made by a method comprising the steps of:

• investment casting a titanium or titanium alloy golf club head having an outer as-cast surface, the club-head having a final desired wall thickness at some portion thereof of from about 0.5 to about 0.7 millimeter;
• drilling from 10 to 100 polish marks into the outer surface to a depth selected to provide a final product thickness of about 0.5 to about 0.7±0.05 millimeter, at least a portion of the plural marks being formed on the crown, the skirt and/or sole of the golf club head;
• and
• performing an initial polish to remove the polish marks;
• and
• performing at least a second polish.