Car Disc Brake Pad Spreader Separator Piston Auto Caliper Repair Tool Rewind Kit This professional-grade Disc Brake Caliper Piston Rewind Tool Kit is designed for efficient and safe brake caliper maintenance. Crafted from premium 45# metal, this tool features high hardness and durability, ensuring it won't deform under pressure. The precision-engineered smooth thread mechanism allows for easy operation, making it ideal for right-handed thread disc brake calipers found in most vehicles. The kit includes a reaction plate and a reversible 3/8" drive dual pin head for versatile use. Key Features: .