Simpler, stronger, and more precise. ATI Industrial Automation has developed a series of Manual Tool Changers that provides a cost-effective solution for quickly changing tools by hand. They feature a unique design that combines high strength, excellent repeatability, and a patent-pending screw-cam locking mechanism with multiple fail-safe features, which resists vibration and prevents loosening. These robust and compact Manual Tool Changers can handle payloads up to 80 pounds (36 kg) and pass pneumatics and electrical signals.