- Broad application: versatile design for maintenance of single-piston, dual-piston, and four-piston brake calipers. - Efficient brake system overhaul: reduces maintenance time by quickly and easily replacing brake components; suitable for both beginners and professionals. - Robust material: constructed from an aluminum alloy and carbon steel combination, delivering high hardness and stable performance in use. - User-friendly operation: simple for double-piston pad replacement; press the tool handle until the piston contacts the inner brake block, then continue pressing to compress both pistons simultaneously. - Compatibility and purpose: designed to support brake caliper service across single-piston, dual-piston, and four-piston configurations; ideal for brake pad replacement and caliper piston retraction. - Use scenarios: - Scenario 1: front brake service on a compact car with a single-piston caliper. - Scenario 2: brake pad replacement on a mid-size vehicle with a dual-piston caliper. - Scenario 3: brake caliper piston compression during maintenance on vehicles with four-piston calipers, such as certain performance cars or vans. - Performance focus: delivers efficient piston retraction to facilitate brake component replacement, streamline maintenance workflows, and support consistent results for both DIY enthusiasts and professional technicians.