WHAT’S NEW DRILLING EQUIPMENT High-pressure cutting tool

High pressure pumping systems capable of delivering pressures up to 20,000 lb per sq in at flow rates up to 20 gal per min are available from National Liquid Blasting of Wixom, Mich. The latest unit features a pressure-operated throttle control which automatically controls engine speed to a pre-set level and returns the engine to idle when used with a dump-type cleaning lance. The unit is powered by a 150-hp diesel engine.