The name Sullivan is synonymous with the finest aeromodelling products available. This superior quality helicopter starter shaft is no exception and has been created using hi-grade aluminium and high tensile steel. Features an accurately machined 6mm ball shaft end, and top quality super-smooth one way bearings for exceptional durability and long-life. For additional convenience the shaft can be easily removed for storage purposes. Note: Spare hex shafts are also available (Z-SLN613SHAFT).