Schrader's Grommet Removal Tool Part Number 20144 is designed to safely remove the rubber grommet from the aluminum stem of a TPMS sensor. Receiving hole can be used to install a new grommet. Schrader hand tools are constructed of high-quality hard plastics for durability. Product Features:Designed to safely remove the rubber grommet from the aluminum stem of a TPMS sensorReceiving hole can be used to install a new grommetSchrader hand tools are constructed of high-quality hard plastics for durability