![]() ![]() * Values are calculated for Length of engagement of 5xPitch. (UNR Only) 0.1008 (Ref) 2.56 (Ref) α Varation of 30° anngle (+/-) 1.5 (Ref) 38.1 (Ref) P Varation of pitch (+/-) 0.0006 (Ref) 0.015 (Ref) 6-32NC Drill/Tap Bit Complete hole drilling, tapping and deburring/countersinking in one operation with power drill saves labor and time Back tapered beyond. * Permisable values for thread Class 3A # Description Value (Inch) Value (mm) es Allowance 0 (Ref) 0 (Ref) d Major Diameter 0.132 - 0.138 3.353 - 3.505 d 2 Pitch Diameter 0.1156 - 0.1177 2.936 - 2.99 d 3 Minor Diameter For calculations of different engagement length use the Thread Calculator Dimensions are shown for both plug and bottoming taps. 3/4 - 1-1/2 pitch of insert 'set down' to allow for maximum production tolerance. TAP SIZE CUTTING TAPS TRU-FLO FORMING TAPS INCH METRIC DRILL SIZE DECIMAL EQUIVALENT. Tap and drill bit combo provides a secure method of drilling the proper hole size before cutting right-hand internal threads. The minimum drilling depths shown below allow for the following recommended practices: Countersinking the drilled hole to prevent a feather edge at the start of the tapped hole. Tap Drill Chart Drill sizes given are the ‘closest’ drill size. Details about 8-32 tap drill, 10-32 tap drill, 6-32 tap drill, and 6-32 drill size are mentioned here. (UNR Only) 0.0999 (Ref) 2.537 (Ref) α Varation of 30° anngle (+/-) 1.5 (Ref) 38.1 (Ref) P Varation of pitch (+/-) 0.0008 (Ref) 0.02 (Ref) Get Fast, Free Shipping with Amazon Prime. The tap size chart on this page is the list of standard size drill bits in different measurement systems that include fractional, metric, wire gauge number, and letter. Pipe Thread Tap and Drill Size Chart ANSI NPT. * Permisable values for thread Class 2A # Description Value (Inch) Value (mm) es Allowance 0.0009 (Ref) 0.023 (Ref) d Major Diameter 0.1311 - 0.1371 3.33 - 3.482 d 2 Pitch Diameter 0.1139 - 0.1168 2.893 - 2.967 d 3 Minor Diameter Machinist Screw Thread Tap - Drill Size Table Chart ANSI Sizes Drill Size Chart (UNC, UNF & Metric ISO Series) Whitworth BS Pipe Thread Size and Tap Drill Table Chart DIN/ISO 228. ![]()
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