Description:The Sette Torx ST-1858M Headset Remover is the easiest and cleanest way to remove a majority of headset cups and it will fit standard and oversize headsets. Pull The ST-1858M through the headtube until the flared ends snap in behind the cup and then tap the reinforced tool head with a hammer and the cup comes out cleanly. The Torx ST-1858M is constructed of durable, heat treated alloy steel.