4 — M achinist calc™ / M achinist calc™ ProChanging a U.S. Thread Classification..................................................... 46Changing a Metric Thread Classification.................................................. 46Numeric Thread Size – Model 4087 ......................................................... 47Fractional Thread Size – Model 4087 ....................................................... 48Metric Thread Size – Model 4087............................................................. 50Custom Thread Percentage (NOT AVAILABLE ON MODEL 4086) ........................... 51WIRE SIZES AND 3-WIRE MEASUREMENTS(NOT AVAILABLE ON MODEL 4086) ........................................................................... 52Wire Size ................................................................................................... 523-Wire Measurement – Known Thread Size and Wire Size ..................... 52Pitch Diameter – Known 3-Wire Measurement and Wire Size................. 53BOLT PATTERN .......................................................................................... 54Bolt Pattern – Model 4086 ........................................................................ 55Bolt Pattern – Model 4087 ........................................................................ 56RIGHT TRIANGLE FUNCTIONS (NOT AVAILABLE ON MODEL 4086) ..................... 57Right Triangle – Based on Adjacent and Opposite Legs .......................... 57Right Triangle – Based on Hypotenuse and Angle ................................... 58CIRCLE CALCULATIONS ........................................................................... 59Circumference and Area – Based on Diameter ........................................ 59Circumference and Area – Based on Radius(NOT AVAILABLE ON MODEL 4086) ........................................................................ 59BASIC D:M:S AND TRIGONOMETRY EXAMPLES ................................... 59Converting Degrees:Minutes:Seconds ..................................................... 59Time Calculations Using D:M:S ................................................................ 60Trigonometric Functions (NOT AVAILABLE ON MODEL 4086) ................................ 60APPeNDIX A – DEFAULT SETTINGS .......................................................... 62APPeNDIX b – PREFERENCE SETTINGS.................................................. 63APPeNDIX C – CARE INSTRUCTIONS........................................................ 66APPeNDIX D – ACCURACY/ERRORS, AUTOSHUT-OFF, BATTERIES, RESET ................................................................. 66RePAIR AND ReTURN .................................................................................. 68WARRANTY ................................................................................................... 69