Product Features: Premium Material: Equipped with a top-grade YG8 alloy cutter head for lasting durability and seamless cutting performance. Robust Construction: Built with a 45# carbon steel cutter body, ensuring the tool remains resilient and long-lasting, even with rigorous use. Superior Coating: The surface is expertly sprayed for enhanced protection against wear, preserving its excellent performance over time. Versatile Use: Specifically tailored for hinge opening, this tool is indispensable for woodworking, especially in door and cabinet construction tasks. Comprehensive Set: This 7-piece set provides all the essential components in one package, delivering a complete solution for both professional and DIY woodworking projects. Specifications: Material: YG8 alloy cutter head, 45# carbon steel body Usage: Designed for hinge opening Number of Pieces: 7 Surface: Sprayed Hole Size: 35mm Package Included: 1 x 35mm Hinge Hole Guide Set