d k GENERAL PURPOSE LS List 916 HSS S/O Long Shank, Plug (3.5P-4.5P) Lc Ln L lk Tap Size EDP NumberThreadNo. ofPlugLimitFlutes(3.5P - 4.5P)LongOverallLengthThreadLengthNeckLengthShankDia.SquareSquareWidthLength S/O L Lc Ln d k lk 1/4 - 20 UNC 12900011290201 6.08.0 1.000 1.688 0.255 0.190 0.311 5/16 - 18 UNC 12904011290601 6.08.0 1.125 1.755 0.317 0.238 0.374 1290801 6.0 3/8 - 16 UNC 1291001 8.0 1.251 1.881 0.380 0.285 0.437 1291201 10.0 7/16 - 14 UNC 12914011291601 6.08.0 1.437 2.224 0.444 0.333 0.500 H3 4 1292001 6.0 1/2 - 13 UNC 12922011292401 8.010.0 1.657 2.444 0.507 0.379 0.562 1292601 12.0 1292801 6.0 5/8 - 11 UNC 12930011293201 8.010.0 1.811 2.598 0.632 0.475 0.688 1293401 12.0 3/4 - 10 UNC 12936011293801 10.012.0 2.000 2.787 0.759 0.568 0.748 Packed: 1 pc. Available Steam Oxide finish only. Work Material P M K N S H Carbon Steels AlloyList No.Low10101018Med.10351045HighSteelsDie10654140Steels4340Stainless SteelsCast30040017-4 PHIronAluminumNickelAlloyTitaniumHardened Steels60617075CastingInconel6Al4V(30 HRC)~35HRC35-4545-5050-70HRCHRCHRC 916 SFM 25-80 20-50 20-45 25-75 good best 594 Straight Fluted Taps WWW.OSGTOOL.COM