In 2006 the gundrilling oil used at Honeywell FM&T (Federal Manufacturing and Technology) was known as 50-50. This name was selected because the oil is a mixture of two machining oils, Milpro 634 and Pennex N47. Unfortunately, Honeywell FM&T was notified that one component, Pennex N47, would be discontinued by the manufacturer. At this point the Honeywell FM&T team decided to select a single oil to eliminate mixing and procurement of two products. In addition, the team also wanted to select new oil with lower viscosity than the 50-50 mixture. Lower (than 50-50) viscosity oil was recommended by Nagel the manufacturer of the new TBT gundrilling machines. To this end Honeywell FM&T evaluated seven cutting oils in order to select a substitute that would achieve acceptable gundrilling results. This work resulted in the selection of Castrol Ilocut 334 based on cutting performance and human factors. The Castrol oil can easily achieve up to 8 holes per drill at a feed rate 30% greater than that achieved by the 50-50 oil. Once design agency approval is received, this oil will be installed as the drilling oil for all FM&T stems. This oil will also be used for other reservoir machining operations where appropriate.
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