Brake caliper compression tool — simplifies brake pad replacement and hydraulic brake service by compressing and rotating pistons for fast, controlled caliper retraction. Key benefits Faster, safer brake pad changes: Compress and retract caliper pistons quickly to make pad or brake plate replacement simpler and reduce installation time. Protects brake components: Thickened steel plate and alloy steel construction minimize deformation and avoid damage to calipers and pistons during service. Reliable, even force: Precisely cut threads deliver smooth, uniform pressure for consistent piston movement and predictable brake pump adjustment. Durable and low maintenance: Chrome-plated handle bar resists corrosion and provides toughness for repeated use. What it does and how it helps Compresses caliper pistons and rotates them under pressure when required by certain hydraulic systems, enabling correct clearance for new pads. Adjusts brake pump hydraulics more easily and securely than improvised tools, reducing the risk of uneven piston travel or caliper damage. Includes a reaction plate and guide screw to center the tool and ensure stable, controlled operation. Materials and compatibility Construction: high-quality alloy steel with thickened steel plate for strength and wear resistance. Finish: chrome-plated handle bar for hardness, toughness, and corrosion resistance. Drive options: works with a 1/2 inch ratchet or a 0.83 inch wrench for convenient use with common hand tools. Design: precision threads for hydraulic adjustment; suitable for installing in the fork saddle to stabilize the tool during use. Included components Caliper compression tool body with chrome-plated handle Reaction plate Guide screw Typical applications / use scenarios Routine brake pad replacement: Use the tool to compress and rotate caliper pistons evenly, creating the space needed for new brake pads on most passenger vehicles. Brake system maintenance after fluid service: When bleeding or replacing brake fluid, use the tool to reset pistons and properly seat pads before road testing. Emergency roadside or home repairs: Portable and compatible with standard 1/2 inch ratchets and 0.83 inch wrenches for quick, controlled piston retraction when you need to replace pads away from a full shop. Why choose this tool Purpose-built for hydraulic brake maintenance with materials and craftsmanship that protect brake parts while making piston compression predictable and repeatable. Simple to operate, compatible with common hand tools, and includes the reaction plate and guide screw needed for stable installation. Notes Intended for compressing and rotating caliper pistons and for hydraulic brake pump adjustment; follow vehicle manufacturer procedures when servicing brakes.