Coleme piston tool for brake calipers. Compact and portable, fits in your toolbox and can be taken to any job. Automotive workshop tool. When activated, the caliper pistons retract from the brake calipers to create clearance for installing replacement brake pads. Caliper tool with sliding sleeve. The sleeve moves left and right to apply force smoothly, making operation easier and ensuring compact storage. Brake pad spreader for disc brake blocks. Enables faster brake pad replacement by retracting the piston and internal pad, resetting the brake block spreader. Use scenarios: - In a home garage to replace worn brake pads on a typical disc brake vehicle, retracting pistons and installing new pads in one session. - In a professional shop to service multiple disc brakes quickly, retracting pistons between pad changes and keeping tools organized in a compact kit. - When space is limited during brake caliper maintenance on tight installations, using the sliding sleeve to apply controlled force for easier pad replacement.