Suitable for milling cutters, jigsaws, drill bits and various mechanical bolt connections, widely used in machining, woodworking and maintenance fields. The overall size of the wing knob is 6mm thread diameter and 40mm handle length, which is ergonomic, comfortable to the touch, and easy to tighten or loosen manually quickly. The wing design provides greater grip and torque, flexible operation, reduces the need for tools, and is suitable for quick adjustment and repeated disassembly and assembly. No special tools are required, and it can be easily tightened and disassembled manually, simplifying the equipment maintenance process and improving work efficiency. A set of 4 knob nuts is convenient for multi-point replacement or spare, meeting the regular needs of home and professional workshops., Manufacturer: YINETTECH