Foredom motor and handpiece oil in hypodermic dispenser has 0.25 fluid ounces or 7.7ml of oil. The .25 ounces of oil in this hypodermic dispenser is high grade machine oil. The dispenser has a 1″ long needle with a rubber stopper cap. To dispense, the unit must be squeezed it is not gravity fed.  Please call us for additional Foredom items or parts not listed on this website.