Later Robert Forgan a Scottish club maker introduced hickory imported from America to make shafts but it wasn't until the late 1890's that some club makers started to experiment with steel shafts.Callaway Diablo Edge IronAs with today steel shafts were banned by the R&A until the Prince of Wales used a set at St Andrews back in 1929 forced a rule change. Callaway Diablo Edge IronsGraphite golf shafts were introduced in 1973 and over time the introduction of other materials such as boran to reduce twising in the club head as it is swung. Callaway Diablo Edge Today there are graphite and steel shafts with different flex and weight to help a wide variant of golf swings.As you will see by the video of the great Tiger Woods to the right, as the golf club changes direction in his back swing the shaft starts to bend and if you look closely you will see it also starts to twist.