2 Holes Grease Drop Point Tester Heating 800W Oil Bath Speed 120r/Min ASTM D566 Core Keywords : grease drop point tester, ASTM D566, ISO 2176, GB/T 4929, lubricating grease dropping point apparatus What Is Grease Drop Point? Drop point is the lowest temperature at which lubricating grease transitions from semi-solid to liquid state under specified test conditions. It is a critical quality indicator that reflects grease heat resistance, base oil bleeding tendency and high