- Anti-rebound performance: The piano spring design provides strong anti-rebound capability and fatigue resistance, ensuring stable performance over time. - Precise verticality and rebound stability: A specially processed impact rod maintains vertical alignment, so 360-degree rotation and impact do not compromise rebound value. - Durable integrated housing: The housing is one piece; the guide key and support are permanently fixed and do not loosen or detach. The button uses a stretching process to resist detachment. - High-precision construction: Made from high-precision material with a finely ground spherical zero-adjustment screw, delivering smoother rebound and firing. Use scenarios: - In precision trigger assemblies and other devices where a consistent rebound force and smooth firing action are critical. - In mechanical joints or actuators that require reliable rotation with stable rebound during cycling. - In maintenance or upgrades of equipment that rely on durable, high-precision rebound components for repeatable performance.