I am a Clubmaker 36 years. Factory Nippon /TaylorMade TK Reg Flex Iron Shaft Set .370 Lengths are 37.35", 36.75", 36.1", 35.6", 35.1", 34.9", 34.5" Please simply just add 1.25" to any shaft to get that clubs finished length. Steps are perfect. Factory Shafts. These are 4-PW Pulls and are Std Length. Nippon shafts for $50