Ideal for cutter enthusiasts, craft hobbyists, and professional seeking dependable and easy to install components for folding or push knives in their toolkit Accuracy machining ensures consistent dimensions and shape, while compatibility with knives featuring a 4mm blade hole diameter and 2.8 3.5mm thickness ranges provides versatile application for diverse user needs Featuring a convenient disassembly design using a T8 plums blossom wrench (not included), this alloy screw enhances maintenance efficiency and overall user experience for seamless cutter operations Crafted from premium alloy, this opening and closing screw delivers lightweight strength and corrosions resistance, ensuring excellent durability and longevity for tool efficient performances Perfect for everyday carry scenarios, outdoor adventures, or workshop maintenance, enabling quick and secure blade deployment with minimal effort, Manufacturer: Hangsu