Hasco Gun Drill 429 is a low viscosity machining oil specifically designed for deep hole drilling. Gun Drill 429 contains chlorine and active sulfur lubricant additives to provide maximum performance across the machining temperature spectrum. Hasco Gun Drill 429 is the product of choice for gun drilling or drilling operations where hole length is significantly longer than hole diameter. The low viscosity and additive levels allow Gun Drill 429 to be used in applications such as crush grinding and form grinding. Gun Drill 429 does not meet the general requirements of SCAQMD Rule 1144 for VOC’s, but may be able to be used under rule exemptions.