The Clock Hand Nut Assortment is a must-have for clockmakers, hobbyists, and anyone involved in clock repair. This 12-piece set includes 4 pieces of each outer dia size: 5 mm, 6 mm, and 10 mm outside diameters, providing versatility and compatibility with a wide range of clock movements. Crafted from durable brass, these hand nuts are not only reliable but also aesthetically pleasing with their polished finish. They are compatible with wall, mantel, grandmother, and grandfather clocks, including popular movements like Hermle and American. Whether you're repairing a vintage timepiece or maintaining a modern clock, this assortment ensures a secure and professional fit for clock hands. Add this essential kit to your clock repair tools and enjoy the convenience of having multiple sizes in one package.