General description The 2 in 1 Bicycle Hydraulic Disc Brake Oil Needle Tool is a multifunctional tool designed for the precise installation of hydraulic hose fittings. It ensures that fittings are securely crimped, preventing poor braking performance that can occur if fittings are not installed correctly. Technical specifications Material: Nylon Net Weight: Approx. 77g Usage The needle driver is a simple and easy-to-use tool that secures hydraulic hose ends, allowing for smooth installation of standard and Torx hose fittings. It is important to avoid using a hammer during the installation process to ensure proper fitting.