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Available from Calculated Industries, the Machinist Calc Pro is a handheld math and reference tool that offers a variety of functions designed specifically for machinists, setters, tool and die makers, supervisors and other personnel at small and mid-sized machine shops. Dedicated functions include built-in drill and thread size tables; drill-point cut depth solutions; bolt-pattern hole layouts; advanced bolt-pattern hole layouts with center X and Y coordinates; right-triangle math; wire sizes and three-wire measurements; trigonometric solutions; and calculations for cutting speed, spindle speed (rpm), feed rate, cutting feed, and feed per tooth (chip load).