Titleist 620 Series Irons - Graphite620 CB Irons Classic Cavity. The new 620 CB irons stay true to everything golfers have come to trust from this classic cavity back model, with distinct refinements that make them better than ever. Reduced offset and topline for the ultimate players look Progressive blade length for optimized play throughout the set Co forged tungsten in 3 and 4 iron for improved balance Tour refined sole for improved turf interaction BEST FOR Players who are looking