Churchill Drilling Tools Targets More Success With Product Reliability. Aberdeen-based drilling systems specialist Churchill Drilling Tools is to invest half a million pounds and expand its workforce to meet growing demand for its revolutionary technology. The company is on course to record a turnover of £3.5million in this financial year with results up by about 30% on 2011. With more than a decade of hydraulic design experience, Churchill Drilling Tools has produced a range of patented performance and safety improvement technologies, used by more than 50 operators worldwide.