40 — Machinist calc™ / M achinist calc™ ProThe following tables list the available Thread characteristicsprovided by the Thread Size function on each model. Note thatModel 4087 has two separate listings, one for Internal Threadsand one for External Threads. The listing shown withinthe Thread Size function is determined by the set ThreadClassification (see Thread Classification section).Model 4086 (Internal Thread)Thread SizeCut Tap Drill Size*Thread OD (Minimum Major Diameter)Model 4087 (Internal Thread)Thread Size Minimum Pitch DiameterCut Tap Drill Size* Maximum Pitch DiameterRoll Tap Drill Size* Minimum Minor DiameterClose Fit Drill Size* Maximum Minor DiameterFree Fit Drill Size* Minimum Major Diameter* If the resulting hole size is greater than 2 Inches or 50 mm, the actualhole size will be displayed instead of adjusting to the closest Drill Size.Model 4087 (external Thread)Thread Size Minimum Pitch DiameterCut Rod Size Maximum Major DiameterRoll Shank Size Minimum Major DiameterMaximum Pitch Diameter Maximum Minor DiameterNumeric Thread Size – Model 4086Enter a # 8 screw and toggle through the available commonThread per Inch (TPI) values, store the selected Thread Size andtoggle through the available Thread characteristics:(cont'd)
