Dyna-Plex 21C HD 1000 (55 Gal. Drum)
Dyna-Plex 21C HD 1000 is designed for grinding, gear grinding, gun drilling and deep-hole drilling. This moderate-duty machining oil is specially formatted with an anti-foaming agent to prevent air entrapment in high-pressure and high-velocity delivery systems, even at high temperatures. Dyna-Plex 21C HD 1000 contains active sulfur and will stain copper, brass and aluminum alloys.