Flute Class Flute Class Symbol of flute design Spiral Straight Spiral point Left hand spiral Roll Symbol of size Symbol of flute design SP HT PO SL RO Note 1: Product symbols shown in red mean thetap suitable for synchronized feed tapping. Overall length Shank dia. Chamfer lengthLDsℓcDrill hole shape P: B: Tap selection MainmaterialSymbol Code L Ds ℓc Productpage Tap selection Mainmaterial Symbol Code L Ds ℓc Productpage TMap2s Note1 Note1 OxidizingLong 123 SP OX23LS-SP SPRU16SX SP P3 125 19 2.5P ① -64SPRU16SL20SPP3200192.5P① -90Taps / 1 1/8-14UNS TMap3s LS-PO POSU16SL20 PO P4 5P ③ -54 Standard 23 SP SPRU18Q SP P3 135 23 2.5P ① -42 123 LS-HT TNMRU16S515 HT P3 150 19 5P ④ -80TNMRU16S1151.5P④ -80Taps / 1 3/16-12UN TMap4s For hard-to-machine materialsPowdered HSS356 PM-PO PYU16STDPB PO P5 125 19 5.5P ③ -93 Standard 123 HT TNMSU19S5 HT P4 145 24 5P ④ -24 For stainless steels 2349 SU-SP SUMRU16S SP P3 125 19 2.5P ①-101 TNMSU19S1For heavy-industrial large parts12349HVSPSYU16SSEEXJSPP4160192.5P① -24Taps / 1 1/4-7UNC1.5P④ -24TMap5s Taps / 1 -14UNS StandardStandard23SPSPRU16QSPP3125192.5P① -4223 SPPO SPMSU20Y SP P4 145 24 2.5P ① -42POMSU20YPO5P③ -18TMap6s PO POSU16Q PO P4 5P ③ -18 123 HT TNMTU20Y5 HT P5 145 24 5P ④ -24 123 HT TNMSU16Q5 HT P4 125 19 5P ④ -24TNMSU16Q11.5P④ -24For heavy-industrial large parts12349HVSP TNMTU20Y1 1.5P ④ -24SYU20YUEEXJSPP6180242.5P① -24TMap8s Taps / 1 -20UNEF Taps / 1 1/4-8UNStandard23SPSPQU16NSPP2125192.5P① -42Standard23SP SPMRU20X SP P3 145 24 2.5P ① -42 TMap1s0 123 HT TNMRU16N5 HT P3 125 19 5P ④ -24 123 HT TNMTU20X5 HT P5 145 24 5P ④ -24 TNMRU16N1Taps / 1 1/16-12UN 1.5P ④ -24 For heavy-industrial large parts 12349 HVSP TNMTU20X1 1.5P ④ -24SYU20XTEEXJSPP5180242.5P① -24TMap1s2 Standard 123 HT TNMSU17S5 HT P4 130 20 5P ④ -24 Taps / 1 1/4-12UNF TMap1s-M8.5 TNMSU17S1 1.5P ④ -24 Standard 23 SP SPMRU20S SP P3 145 24 2.5P ① -42 Taps / 1 1/16-14UNS PO POMSU20S PO P4 5P ③ -18123HTTNMSU20S5HTP4145245P④ -24TMap9s-M24 Standard 123 HT TNMSU17Q5 HT P4 130 20 5P ④ -24 TNMSU20S1 1.5P ④ -24 TNMSU17Q1Taps / 1 1/8-7UNC 1.5P ④ -24 For heavy-industrial large parts 12349 HVSP SYU20SSEEXJ SP P4 180 24 2.5P ① -24Taps / 1 5/16-12UNTMap2s5-M48 Standard 23 SP SPSU18Y SP P4 135 23 2.5P ① -42 StandardPOPOSU18YPO5P③ -18 123 HT TNMSU21S5 HT P4 155 28 5P ④ -25TNMSU21S11.5P④ -25TMap50s-M100 123 HTFor heavy-industrial large parts12349HVSP TNMTU18Y5 HT P5 135 23 5P ④ -24TNMTU18Y11.5P④ -24Taps / 1 3/8-6UNCSYU18YUEEXJSPP6180232.5P① -24Standard23SP SPMSU22Z SP P4 155 28 2.5P ① -42 TtFahoprresUadnsified Taps / 1 1/8-8UNStandard 23 SP SPRU18X SP P3 135 23 2.5P ① -42 PO POMTU22Z PO P5 5P ③ -18123HTTNMTU22Z5HTP5155285P④ -25TNMTU22Z11.5P④ -25TFtahorpresWadhsitworth 123 HTFor heavy-industrial large parts12349HVSP TNMTU18X5 HT P5 135 23 5P ④ -24 For heavy-industrial large parts 12349 HVSP SYU22ZUEEXJ SP P6 200 28 2.5P ① -24TNMTU18X11.5P④ -24SYU18XTEEXJSPP5180232.5P① -24Taps / 1 3/8-8UNToFanorspSecwrsien(wg mtSharceMhaidns)esused Taps / 1 1/8-12UNF StandardStandard23SPSPRU18SSPP3135232.5P① -4223 SP SPMRU22X SP P3 155 28 2.5P ① -42123HTTNMTU22X5HTP5155285P④ -25TNMTU22X11.5P④ -25TFaopr Psipe threads PO123HT POSU18S PO P4 5P ③ -18 For heavy-industrial large parts 12349 HVSP SYU22XTEEXJ SP P5 200 28 2.5P ① -24TNMSU18S5HTP4135235P④ -24TNMSU18S11.5P④ -24Taps / 1 3/8-12UNFTpFaioppresAtmhreeraicdasn For heavy-industrial large parts 12349 HVSP SYU18SSEEXJ SP P4 180 23 2.5P ① -24 Standard 23 SPPO123HT SPMRU22S SP P3 155 28 2.5P ① -42POMSU22SPOP45P③ -18TFtahoprresMadinsiatureTNMSU22S5HTP4155285P④ -25 TNMSU22S1 1.5P ④ -25 Oxidizing 123 PO OX POMSU22SX PO P4 155 28 5P ③ -36 For heavy-industrial large parts 12349 HVSP SYU22SSEEXJ SP P4 200 28 2.5P ① -25 For improvement, spec may change without advance notice. Sizes-111