Cobra king f7 driver bluecobra has rightfully earned its ability to use the ldquokingrdquo name for its legendary products and theyrsquove demonstrated it once again with the unveiling of the all new 2017 f7 and f7 drivers they stripped out even more weight from the forged 811 titanium face by reducing and thinning certain areas around the perimeter as well as making the centre thicker in addition to its 8 setting adjustable hosel the 2017 f7 features adjustable weight screws