Terminal surface tooth foreign steamer

The utility model belongs to the technical field of auto parts, especially, relate to a terminal surface tooth foreign steamer. Including the wheel body that has the blind hole, the blind hole inner wall is reduced by outer end to the inner gradually, be equipped with the internal diameter to the interior interior annular inclined face who dwindles gradually outside by between the interior terminal surface of blind hole and inner wall the inner, be equipped with interior arc chamfer between interior annular inclined face and the blind hole inner wall, the blind hole outer end is equipped withblind hole mouth chamfer, the wheel body outer wall extends the smooth section that the external diameter equals including lieing in blind hole open end to the other end, a smooth section the inner isequipped with the first annular rake that the external diameter dwindles gradually from top to bottom, be equipped with the 2nd smooth section that the external diameter is equal with first annular rake lower extreme at first