Colingmill Grandfather Clock Winding Key Crank Winder, 4mm I. D. Key

Package Includes: this grandfather clock winding key has an inner diameter of 4mm and an ergonomic handle to make winding easier and ensure an ideal fit for most grandfather clocks; It is compatible with all major brands to ensure smooth and easy winding every time | Brass Construction: made from quality solid brass, this winding key is resistant to rust and corrosion, ensuring durability and long-term use; Its sturdy construction provides a reliable grip and effortless operation, combining functionality with elegance | Ergonomic Design: the winding handle crank is made of wood and features an ergonomically designed handle to make the winding process comfortable and easy; The polished finish offers a smooth and firm grip, making weekly winding a simple and satisfying task | Precision Size: designed for grandfather clocks that require a 4mm inner diameter winding key, please ensure that the dimensions match these load-bearing winding shafts of modern grandfather clocks perfectly for a perfect fit and efficient operation | Manual Operation: this square crown crank is precision-engineered to work seamlessly with a mechanical grandfather clock, allowing you to wind smoothly and maintain accurate timekeeping; Perfect for watch enthusiasts who value tradition and hands-on maintenance