DNR Corporation

Synthetic Tech. Long Life Gun Drilling / Deep Hole Drilling Oil. Gun drilling is also known as deep drilling, involves drilling of holes to a depth some times exceeding 150 to 300 times the hole-dia.

The quality of the cutting fluid is of great importance since it not only removes the metal chips but also has to provide adequate lubrication to the tool cutting edges, as the tool travel-speed sometimes exceeds 100 mm per minute.

It is very essential for these fluids, to use the right viscosity coolant to ensure good flushing action for the swarf and to maintain the high viscosity flow of the fluid.