GOLF CLUB HEAD WITH GROOVES SHALLOWER THAN SCORELINES AND GROOVE PITCH AND LENGTH

摘要

A golf club head according to this invention is a wood type golf club head including a face portion, a crown portion, and a sole portion. A plurality of grooves are formed in the face portion. The depth of the plurality of grooves is less than 0.025 mm. Each pitch between adjacent grooves of the plurality of grooves ranges from 0.1 mm (inclusive) to 1 mm (inclusive).