Milton (S-443) 3-in-1 Tire Valve Extractor and Inflator Tool - Remove, Inflate, Install. MULTI-FUNCTION TOOL: Use to remove valve cores, install valve cores, and inflate your tires with air. 1/4" threaded inlet. SAVE TIME: Cut the valve cap installation process in half. Customized with air-holding seals to speed airflow through the tire valve. NO MORE: Unnecessary wear on standard valve core tools, escaped air from the tire/valve, or having to reinstall the tire chuck. TO INFLATE TIRE PRESSURE: Install air chuck onto #433, push knurled end inward, unscrew valve core. Pull knurled knob back, allowing core to be safely held inside of tool's air-tight chamber, out of the path of air. FULL LENGTH: 5 1/8". (6 3/4" if extended). The perfect tool for removing valve cores, inflating tires and installing cores in one tool Valve core remains inside the tool so no more lost valve cores. Tire valve extractor Remove/Install and inflate - all in one tool Clips onto tire valve threads 0 0 0 Total length of 5 1/8" - 6 3/4"