Callaway Diablo Octane 10.5 Left Hand Driver Graphite Shaft R-flex
The Callaway Diablo Octane drivers and fairway woods feature a material in the crown the company calls Forged Composite, a lightweight material developed in conjunction with performance automobile company Lamborghini.
The lighter head that results is then paired with a longer shaft. The combination, Callaway says, is good for a distance boost of eight yards in testing, compared to Callaway's all-titanium predecessors of the Diablo Octane driver.