Hamilube® 7709 is a non-chlorinated straight oil containing friction-reducing extreme pressure additives, which makes it suitable for drilling operations. It is also applicable for threading, tapping, turning, milling, trepanning and other machining operations on steel. Used on Stainless and Alloyed steels. It contains sulfurized additives and has a light viscosity, which makes it suitable for gun drilling. It will provide an adequate fluid film between the wear pads and the work material, will prevent welding of chips to the cutting edge of the drill, will cool the drill and the work, and dispose of the chips easily by flushing.