8 — M achinist calc™ Pro(cont’d)g= Paperless Tape (Tape) — Accesses the PaperlessTape mode (see Paperless Tape section), whichkeeps track of your past 30 entries. Useful forchecking strings of numbers.gS Preference Settings (Prefs) — Accesses variouscustomizable settings, such as dimensional answerformats (see Preference Settings section).Machinist function KeysC cutting Speed — Enters or calculates CuttingSpeed. Unitless entries assumed meters per minutein Metric mode; feet per minute in U.S. mode.Calculates Cutting Speed given entered Diameterand RPM (Spindle Speed). Result is displayed as awhole number.gC radial chip Thinning (rcT) — Enters a Cut Depthand calculates a Radial Chip Thinning factor toincrease the Feed Rate given Feed Per Tooth, ToolDiameter and a Cut Depth that is less than one-half the Tool Diameter. Unitless entries assumedmillimeters in Metric mode; Inches in U.S. mode.R revolutions per Minute — Enters or calculatesRPM (Spindle Speed). Calculates RPM given enteredDiameter and Cutting Speed. Result is displayed as awhole number.gR 3-Wire Measurement (3-W Measure) — Entersor calculates a Three-Wire Measurement. Unitlessentries assumed millimeters in Metric mode;Inches in U.S. mode. Calculates the minimum andmaximum Three-Wire Measurements and PitchDiameters given entered Thread Size and Wire Size,assuming an External thread type. If a Three-WireMeasurement value is entered, the Pitch Diametercalculation is based on this entered measurement.