The Chuck Jaw Insert Set includes models 6991, 7991, 8991, 6890, and 7890 from REX International USA Inc, providing versatile solutions for clamping and gripping in machining applications. Each insert is crafted from high-quality materials to ensure longevity and precision. Designed to fit various chuck types, these inserts enhance the performance of your machinery, allowing for secure and stable workpieces. Ideal for professionals in manufacturing and metalworking, this set meets stringent industry standards for quality and reliability.