Ideal for machining pros, machine setters, tool and die makers, production engineers, shop managers and shop owners who want to increase productivity and profits in the design, layout and set-up stages of production and reduce wear and tear on costly cutting tools. And while perhaps obvious, if you change from an iOS device to a non-iOS device, you WILL need to buy a new license as they are incompatible. Display pitch, major and minor diameters Drill Point - Enter the cutting angle and Drill Size and calculate the Drill Point cut depth Drill Size - Enter numeric, letter, fractional or metric Drill Size and display the closest fitting Drill Size and scroll through available drill sizes 3-Wire Measure - Enter Wire Size (or use calculated Best Wire size) and 3-Wire Measurement to calculate pitch diameter Trigonometric Functions - Sine, Cosine, Tangent, Arcsine, Arccosine, Arctangent Right Triangle Math - Enter, calculate Angle, Hypotenuse, Opposite and Adjacent side lengthsAdditional Features: Thread Classification Tables U.S. - Internal (3) 1B, 2B, 3B - External (3) 1A, 2A, 3AMetric - Internal (14) 3G-9G and 3H-9H - External (28) 3g-9g, 3h-9h, 3e-9e, 3f-9f U.S. and Metric Unit Entries and Conversions Decimal Inches/milsFeet-Inch-Fractionsm, mm, cmArea, Volume and Weight Works as a Standard CalculatorTRADEMARKS:Machinist Calc is a registered trademark of Calculated Industries, Inc.