Durable construction This disc brake alignment tool is built with grooves and smooth edges to minimize deformation. It delivers reliable performance with precise disc brake adjustments, and its rugged design stands up to extended use without compromising the quality of work. More corner openings Equipped with 15mm, 18mm and 42mm openings, it provides an accurate solution to brake friction problems, increases repair efficiency, and supports different angle adjustments to achieve optimal results. This tool is ideal for precision work on hard drive brakes and guarantees reliable performance every time you use it. Comfortable grip Designed for a comfortable, fluid manipulation that minimizes user fatigue. It adapts to compatible brake systems and features a handle design that can help prevent unwanted noise during use. Parallel piston calibration Ensures symmetrical piston recovery to avoid irregular protrusions, using a circuit breaker to safely improve braking performance. The tool is designed to protect the brake system from damage and ensure even pressure distribution while maintaining disc brakes. Ideal for those seeking precision and reliability in disc brake restoration. Use scenarios - Bicycle or motorcycle maintenance: use to align the caliper and center pads after rotor replacement or when diagnosing rub and uneven pad wear on disc brakes. - Automotive brake service: apply when calibrating parallel pistons to achieve even retraction and uniform pad contact, improving braking consistency and protecting the brake system. - Professional workshop applications: suitable for precision work on disc brake systems that require multiple angle adjustments and varying opening sizes to resolve friction issues and achieve optimal braking performance.