Feature: 1. Leakage Free Design: The reinforced jaw and premium sealing gasket can prevent leakage even under the extreme pressure of 10000 PSI, ensuring long term service, and no longer wasting grease everywhere. 2. Good Spring: The spring of grease tool coupler has good performance, and can ensure slippy sliding and stable performance throughout its life cycle. 3. Double Handle: Labor saving double handle design for easy oil injecting, the delicate texture of the handle ensures the friction with the palm to avoid accidental slipping. 4. Replacement Parts: This oil nozzle can be used as a replacement part of grease tools to replace damaged original parts and prolong the service life of spray tools. 5. Convenient to Use: Grease tool accessories can be locked and released quickly, easily and conveniently, with simple operation and easy use.