This simple tool is very well made and great for precision oiling in tight and hard to reach places and machines. The case is solid turned aluminum for extended life, and the internal needle is steel. The threads are well formed and the rubber gaskets serve to seal the case at both ends. This oiler has protective screw on cover and seal prevents leakage.
To deliver a tiny drop of oil precisely where it is needed, just press the thumb button at the top once. The drop is delivered just where you place the steel tip. To fill up, screw the top off and fill the reservoir. 1 lbs (0.5Kg) shipping weight.