Product features - Material and construction: Made of aluminium, offering low density for easy handling and portability. Aluminium provides sufficient strength to withstand the pressure and torque of the brake proportioning valve bleeding process. It also has good thermal conductivity to help keep the tool stable and prevent performance damage. - Practical tool for brake systems: Designed to efficiently lock the low pressure bleed valve, enabling faster and easier brake system bleeding. Helps prevent valve tripping and improves overall bleeding efficiency and operator comfort. - Compatibility and scope: Compatible with non-adjustable combination valves, 172-1353, DISC/DISC and DISC/DRUM PV2, PV4. It locks the low pressure bleed valve to allow PV2/PV4 brake system bleeding quickly and easily. Please verify compatibility with your setup before purchasing. - Easy installation: Installation is simple and does not require special skills or tools. Steps: unscrew the brake failure indicator switch on the valve, replace it with the tool, then screw to secure the valve and complete installation. How it solves common problems - Reduces bleeding time by securely locking the low pressure bleed valve, making brake bleeding faster and more reliable. - Minimizes the risk of valve trips during bleeding, contributing to a smoother service workflow. - Provides a lightweight, durable, thermally stable tool that maintains performance through repeated use. Usage scenarios - Routine brake system bleeding in workshops using PV2, PV4 or DISC/DISC/DRUM configurations. - Servicing or replacing brake proportioning valves, where quick and controlled bleeding is required. - On-site brake maintenance for quick bleed operations to restore braking performance and reduce downtime.