About This 360 Dual-Action Ratchet System: Featuring an upgraded 360 ratcheting mechanism, the tool allows smooth, continuous rotation for effortless positioning in tight spaces. The reversible flip-lever switch enables quick mode changes between spreading and retracting, minimizing hand strain and ensuring precise, parallel force distribution to avoid piston misalignment or rotor damage Complete Tool Kit with Practical Accessories: Included 2 heavy-duty caliper hooks securely hold brake calipers, hoses, and components during service, keeping workspaces organized and reducing strain on brake lines. The compact, portable design fits easily in tool bags or trunks, ensuring readiness for garage projects or on-the-go repairs Effortless Operation: Simplify brake adjustments with a swing-handle design: expand or retract the plates with minimal effort, and switch between positive/negative regulation via the ratchet’s reversing switch. The intuitive mechanism requires no complex setup, making it perfect for both professional mechanics and DIY enthusiasts Universal Disc Brake Compatibility: Designed with adjustable spreading plates (1.57"-2.75"/40mm-70mm), this tool fits single, twin, and quad piston fixed/floating calipers on most modern vehicle disc brake systems. Not suitable for drum brakes. Pressure Brake Caliper Tool: The parallel thrust design evenly distributes pressure, ensures balanced compression between pistons, making it ideal for brake pad replacements, caliper repairs, and maintenance on cars, trucks, and suvs