Introduction To keep precious engine and machine in best condition is a pride of enthusiast to his beloved vehicle. We wish all the enthusiasts who know the pleasure to have the machine develop the maximum performance under any conditions, to use the high grade racing equipment, O.S. SPEED Racing Tools which deliver fine fingers feeling. Specifications Model Number: 71413600 Model Name: O.S. SPEED 71413600 Racing Tool 6.0mm Nut Driver This is special edition bundle with RCECHO Apps license key included for more fun!. RCECHO is a registered trademarks. Products only distributed by authorized seller.