Our 120pcs Woodruff Key Assortment Kit is a high-quality solution for all your mechanical needs. Made from premium carbon steel, these woodruff keys are corrosion-resistant and anti-rust, ensuring durability and long-term performance. The kit includes 10 different sizes: 20pcs M3x3.7x10, 20pcs M3x5x13, and 10pcs each of M3x6.5x16, M4x5x13, M5x9x22, M4x6.5x16, M5x6.5x16, 4x7.5x19, M5x7.5x19, and M6x9x22. Each key is designed to fit snugly into its slot, providing a secure connection and preventing independent movement of gears or other components. The keys come in a sturdy, transparent storage box with compartments, making it easy to organize and find the right size quickly. Ideal for use in automotive engines, industrial machinery, machine tools, and agricultural equipment, this woodruff key assortment is perfect for workshops, DIY enthusiasts, and professionals. Enhance your mechanical projects with our reliable and versatile woodruff key set.