* Brass oiler with spring loaded dust cap - this is a right angle oiler which is normally used on machinery

* Brass oiler with spring loaded dust cap - large 1-1/4 barrel - normally used on machinery

* Button oilers are designed to fit flush with the machine surface * Spring loaded ball to keep the oil in and the dust and water out

* Button oilers are used on many machines as a way of keeping them oiled and reducing wear * Simple design with a non-return ball stopping the oil from escaping * These oilers are a press fit and come in various diameters * Manufactured from copper material