Product Introduction
This 5mm inner diameter brass coupling is designed for small mechanical drive systems, offering excellent durability. Made from premium brass, it provides superior wear resistance and corrosion protection. The product includes an Allen key and set screws for easy installation and removal, making it perfect for DIY projects and various mechanical drive applications.

Product Features
✅ Inner Diameter: 5mm
✅ Material: High-Quality Brass
✅ High-precision machining with a smooth surface
✅ Includes set screws and Allen key for easy installation
✅ Ideal for motors, models, mechanical equipment, and more

Product Specifications
• Inner Diameter: 5mm
• Outer Diameter: approx. 9mm
• Length: approx. 20mm
• Material: Brass

Package Contents:
1 × 5mm Inner Diameter Brass Coupling
1 × Allen Key
4 × Set Screws