Flute Class Flute Class Icons of main materials 1 Low carbon steel   2 Medium carbon steel   3 High carbon steel   4 Alloy steel   5 Thermal refined stee(l 25~35HRC)   6 Thermal refined stee(l 35~45HRC)    7 Thermal refined stee(l 45~55HRC)   8 Thermal refined stee(l 50~63HRC)   9 Stainless steel    Tool steel   ⓫ Cast steel   ⓬ Cast iron    ⓭ Ductile cast iron   ⓮ Copper   ⓯ Brass   ⓰ Brass casting   ⓱ Bronze   ⓲ Wrought aluminum   ⓳ Aluminum alloy casting    ⓴ Magnesium alloy    Zinc alloy   ㉒ Titanium alloy   ㉓ Nickel base alloy   ㉔ Thermosetting plastic   ㉕ Thermoplastic resin  TMa2ps Tap selection Mainmaterial Symbol Code L Ds ℓc Productpage Tap selection MainmaterialSymbol Code L Ds ℓc Productpage Note1 Note1 TMa3ps Taps / M19 × 1 Long Oversize 23 LS-PO POT020RL15 PO P5 150 15 5P ③ -53123LS-HTTNMS020R515HTP4150155P④ -76 Standard 23 SP SPQ019M SP P2 105 15 2.5P ① -39 TNMS020R520 200 ④ -76 PO POR019M PO P3 5P ③ -15 TNMS020R115 150 1.5P ④ -76 TMa4ps 123 HT TNMR019M5 HT P3 105 15 5P ④ -12 TNMS020R120 200 ④ -76 TNMR019M1 1.5P ④ -12 For left hand 123 LS-HT LH TNMR020R515L HT P3 150 15 5P ④ -83 TMa5ps For left hand threads 123 HT LH TNMR019M5-L HT P3 105 15 5P ④ -66TNMR019M1-L1.5P④ -66threads TNMR020R520L 200 ④ -83TNMR020R115L1501.5P④ -83 TMa6ps Taps / M19 × 0.75 TNMR020R120L 200 ④ -83For soft structural steels12E-SPESHMR020RSPP3105152.5P①-128Standard123HTTNMR019J5HTP3105155P④ -12For high carbon steels23HC-SPSCMR020RSPP3105152.5P①-131 TNMR019J1 1.5P ④ -12 235 HC-PO PCMS020R PO P4 105 15 5P ③ -77 TMa8ps Taps / M19 × 0.5 For hard-to-machine 356 EH-PO EPHMT020R PO P5 105 15 4.5P ③ -82materials6⓾EH-HTETHMT020R5HTP5105155P④-120 Standard 123 HT TNMQ019G5 HT P2 105 15 5P ④ -12 ETHMT020R1 2.5P ④-120 MT1a0ps TNMQ019G1 1.5P ④ -12Taps / M20 × 2.5 Powdered 356 PM-SP SY020RSDPB SP P4 105 15 2.75P ①-167HSSLS-PM-SPSY020RSDPBG150①-173PM-POPY020RTDPBPOP51055.5P③ -92 MT1a2ps Standard 23 SP SPR020R SP P3 105 15 2.5P ① -39 LS-PM-PO PY020RTDPBG 150 ③ -97POPOS020RPOP45P③ -15For titanium alloys㉒ZET-BZETBMS020RSPP4105153P①-152 123 HT TNMS020R5 HT P4 105 15 5P ④ -12 ZET-P ZETPMT020R SL P5 5P ② -20 M1-MT8a.5ps TNMS020R1 1.5P ④ -12 For nickel base 129㉓ ZEN-B ZENBMS020R SP P4 105 15 3P ①-160Oversize23SPSPS020RSPP4105152.5P① -39alloysZEN-PZENPMT020RPOP54.5P③ -86 PO POT020R PO P5 5P ③ -15 Carbide taps for ultra hard materials 8 UH-CT UHCS020R5 HT P4 105 17 5P ⑤ -28 M9-MT2a4ps POU020R P6 ③ -15 For stainless steels 2349 SU-SP SUMR020R SP P3 105 15 2.5P ①-100123HTTNMT020R5HTP5105155P④ -1212349SU-POPUMS020RPOP4105155P③ -61 TNMT020R1 1.5P ④ -12 129 SU-HT TUMS020R4 HT P4 105 15 4P ④ -89 M25-MT4a8ps For left hand threads 23 SP LH SPR020R--L SP P3 105 15 2.5P ① -78 TUMS020R1 1.5P ④ -89 PO LH POS020R--L PO P4 5P ③ -47 Oversize 2349 SU-SP SUMS020R SP P4 105 15 2.5P ①-100 123 HT LH TNMS020R5-L HT P4 105 15 5P ④ -66 123 SU-PO PUMT020R PO P5 105 15 5P ③ -61 M50-MT1a0p0s TNMS020R1-L 1.5P ④ -66 49 PUMU020R P6 ③ -61 Oxidizing 123 SP OX SPR020RX SP P3 105 15 2.5P ① -63 For deep 12349 SU-S-SP SSMR020R-SU SP P3 105 15 2.5P ①-117 For tUhrneiTfaiaedpdss Coating PO OX POS020RX PO P4 5P ③ -3512349VUSP1101101141SPP5140152.5P① -7hole use1239 LS-SU-S-SP SY020RRGEXGS SP P3 150 15 2.5P ①-119SY020RRGEXKS200①-119 1234 AU+SP VSAPS020R SP P4 105 15 2.5P ① -84 LS-SU-S-PO PY020RSGEXGS PO P4 150 5P ③ -71 For WhtihtwrTeoaardtphss 9⑲㉑ AU+SL VSAPS020RL SL 5P ② -12 PY020RSGEXKS 200 ③ -7112349⓾VUPO1102101141POP5140155P③ -6For hard-to-machine materials12349SU2-SPSU2MS020RSPP4105153P①-114 1234 PO V VPOS020R PO P4 105 15 5P ③ -48 For cast irons ⑫⑬ FC-HT TY020RTAEN5 HT P5 105 15 5P ④ -93 ForoSTncrseaewwptinhgresmaadcs(huSisneeMds ) Long 23 LS-SP SPR020RL15 SP P3 150 15 2.5P ① -89 TY020RTAENA 1.5P ④ -93SPR020RL20200① -89Carbide⑫⑬⑯N-CT FCTCNS020R3HTP4105153P⑤ -12 SPR020RL25 250 ① -89 TCNS020R1 1.5P ⑤ -12 For Pipe thTreaadpss LS-PO POS020RL15 PO P4 150 5P ③ -53 Long shank, ⑫⑬⑯ LS-N-CT TY020RSAWB3G HT P4 150 15 3P ⑤ -19POS020RL20200③ -53carbideTY020RSAWBAG1.5P⑤ -19 FpoirpeAmtherTreicaaadpnss POS020RL25 250 ③ -53 For aluminum ⑱⑲㉑ LA-HT TY020RTLEN5 HT P5 105 15 5P ④-109123LS-HTTNMR020R515HTP3150155P④ -76TY020RTLENA1.5P④-109TNMR020R520200④ -76Carbide⑲㉑N-CT LATCNS020R3AHTP4105153P⑤ -5 For MtinhiraTetauadrpess TNMR020R525 250 ④ -76 TCNS020R1A 1.5P ⑤ -5TNMR020R1151501.5P④ -76Carbide spiralfluted taps⑱⑲㉑N-CT-SPSY020RSKWBSPP4105152.5P⑤ -20TNMR020R120200④ -76Thread forming taps for⑱⑲㉑N-RSNRSM1020RPROG11 105154P⑥ -29 TNMR020R125 250 ④ -76 non-ferrous materials NRSM1020RB 2P ⑥ -29 For high speed 12 F-SP VFSHMS020R SP P4 105 15 3P ①-176 F-SL VFSHMS020RL SL 5.5P ② -26 Sizes-66 Codes shown in ( ) are available while supplies last.