Brake Proportional Valve Bleeder Tool for DISC DRUM PV2 and PV4 AC 172 Features: 1. Suitable for all popular non-adjustable GM type combination valves 2. Used to lock the low pressure exhaust valve, allowing the braking system on PV2/PV4 to bleed quickly and easily 3. Made from high-quality materials for durability 4. Specially designed for CPP proportional valve to prevent the combined valve from tripping 5. Tool designed to lock the low pressure shut valve to enable fast and easy brake system bleeding Specifications: Material: Aluminum Color: Blue Size: Diameter 17mm, Length 40mm Weight: 18g Applicable for: DISC DRUM PV2 and PV4 AC 172-1371, etc Package Includes: 1 x Brake Proportioning Valve Bleeder Tool Note: - Package includes only the items listed above - Specifications are manually measured and for reference only - Allow 0–1 cm error due to manual measurement - Due to monitor differences, actual color may vary slightly from images