Feature:1. Manufactured with excellent forging technology and premium cast iron material, very durable for long‑term use.2. With this crankshaft, you can conveniently control the with great accuracy, very efficient.3. The needle valve enables better control, and the simple operation will largely save your time with high efficiency.4. Suitable for various brands of compressors and other equipment, such as for Bama, for Fengli, for Ribao.5. With small size and light weight, the crankshaft rotor is very easy to install and carry for daily maintenance.Specification:Item Type: CrankshaftMaterial: Cast IronFunction: and pump accessory. Shaft Hole Size: Approx. 16 x 20mm / 0.6 x 0.8in Package List:1 x Crankshaft