- High quality aluminum alloy: The brake draining tool is made of durable aluminum alloy, designed for long-lasting performance and reliability even under heavy use. It is characterized by excellent wear resistance, which helps ensure consistent function over time. - Compact dimensions: With a length of 39.3 mm (1.54 inches), a handle diameter of 0.7 inches (17.9 mm), a screw diameter of 0.49 inches (12.5 mm) and a density gauge of 0.12 inches (3.2 mm), this tool is compact and precisely engineered to fit easily into tight spaces. - Easy to install: Installation is straightforward - simply remove the brake light master switch from the valve and replace it with the drain tool by screwing it into the valve. This effortless process allows for quick setup and use. - Versatile compatibility: The tool is designed for use on a variety of vehicles and is especially suitable for those equipped with DISC/DRUM PV2 and PV4 AC 172-1371 172-1353, making it an essential addition to your car tools. - Use scenario: Brake fluid drainage on vehicles with a brake light master switch integrated in the valve, enabling a clean replacement process. - Use scenario: Servicing vehicles with DISC/DRUM PV2 and PV4 AC 172-1371 172-1353 for efficient drainage during maintenance. - Use scenario: Accessing tight spaces in cramped engine bays or wheel wells where a compact tool is required for quick setup and use.