With the development of Aerotechâ€™s SteelFiber golf shaft, players now have a new option: Graphite, Steel or SteelFiber. Itâ€™s an entirely new category of golf shaft that delivers the power of graphite with the stability of steel. Filament wound carbon fiber core combined with steel fiber outer layer creates a shaft with distinct advantages. Superior hoop strength reduces deformation and minimized wall thickness promotes a solid feel through impact. Read more.