Boron Graphite shafts are an Alloy of Carbon Fiber with Boron(Metal Element) Weaved along the side the carbon fiber strands. The best graphite Iron shafts ever made all have this in them, Some examples are the Yonex Tour irons that Phil Mickelson played, they had Yonex LTB-600 shafts(Low-torque-boron) and G.Loomis Tour shafts as well(G.Loomis also makes HIGH END fishing rods. Boron significantly improves the the tip and bend profile of the shaft and also makes it stronger, Boron significantly reduces the torque of a shaft, The Loomis tour's and Yonex ltb-600 shafts have lower torque numbers that TT Dynamic Gold steel shafts.
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