Upgrade your RC car maintenance game with the Tekno XT Nut Drive Tool Tip. Designed to fit 5.5mm and 4mm shank sizes, this versatile tip is a must-have for any radio control enthusiast. Precision-engineered by Tekno, a trusted name in the industry, you can trust this tool to deliver reliable and efficient performance for all your nut driving needs. Whether you're fine-tuning your car for a race or simply maintaining it for optimal performance, this tool tip is the perfect addition to your toolkit.