Three Applications: Cuts Thread On Outside Of Valve Extension (For Dust Cap) And On Inside For Valve. Primarily Used For Removing Valves.The Pcl Tyre Valve Tool Is An Essential Tool For Every Vehicle Owner; Designed To Provide Easy And Precise Maintenance Of Tyre Valves. Whether Youre A Diy Enthusiast Or A Professional Mechanic; This Tool Ensures Hassle Free Valve Maintenance; Saving Time And Effort.