MOLUB DB is a very effective cooling lubrication oil, used at such machining operations as steel gun drilling. Additive selection allows its efficiency at high temperatures, typical for this type of machining. Molub DB is not recommended for machining of copper and copper alloys, as it contains active sulfur, having adverse impact to such materials. Molub DB has good rinsing and cooling capabilities. Application of this oil prevents spot welding of cutting blade, thus extending tool service life.