Equip yourself properly for club re-shafting with The GolfWorks .370" Black Iron Ferrules. These pre-polished black ferrules are .500" long with a .370" tip diameter for a perfect fit with a seamless appearance. Details Pre-polished black ferrules 19deg countersink allowing for a cushion of epoxy to form between the top of the hosel and inside of the ferrule Length: .500" (standard) Tip diameter: .370" Outside diameter: .540"