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 / M25 × 3 Taps / M26 × 1.5 Standard 123 HT TNMS025S5 HT P4 125 19 5P ④ -14 Standard 23 SP SPR026O SP P3 130 20 2.5P ① -40 TNMS025S1 1.5P ④ -14 PO POS026O PO P4 5P ③ -16 TMa4ps For left handthreads 123 HT LH TNMS025S5-L HT P4 125 19 5P ④ -67TNMS025S1-L1.5P④ -67 123 HT TNMR026O5 HT P3 130 20 5P ④ -14TNMR026O11.5P④ -14 TMa5ps Taps / M25 × 2 For left hand 123 HT LH TNMR026O5-L HT P3 130 20 5P ④ -67threadsTNMR026O1-L1.5P④ -67 Standard 23 SP SPR025Q SP P3 125 19 2.5P ① -40 For high carbon steels 23 HC-SP SCMR026O SP P3 130 20 2.5P ①-131 TMa6ps PO POS025Q PO P4 5P ③ -16 Nut taps 12 NT NH2026O HT Ⅱ 230 20 25P ⑦ -28123HTTNMS025Q5HTP4125195P④ -14TNMS025Q11.5P④ -14Taps / M26 × 1 TMa8ps For left handthreads 123 HT LH TNMS025Q5-L HT P4 125 19 5P ④ -67 StandardTNMS025Q1-L1.5P④ -67 23 SP SPQ026M SP P2 130 20 2.5P ① -40POPOR026MPOP35P③ -16 Nut taps 12 NT NH2025Q HT Ⅱ 240 20 25P ⑦ -28 123 HT TNMR026M5 HT P3 130 20 5P ④ -14 MT1a0ps Taps / M25 × 1.5 TNMR026M1 1.5P ④ -14For left hand123HT LHTNMR026M5-LHTP3130205P④ -67 Standard 23 SP SPR025O SP P3 125 19 2.5P ① -40 threads TNMR026M1-L 1.5P ④ -67 MT1a2ps PO123HT POS025O PO P4 5P ③ -16TNMR025O5HTP3125195P④ -14Taps / M27 × 3 TNMR025O1 1.5P ④ -14 Standard 23 SP SPR027S SP P3 130 20 2.5P ① -40 M1-MT8a.5ps For left handthreads 123 HT LH TNMR025O5-L HT P3 125 19 5P ④ -67TNMR025O1-L1.5P④ -67 PO POS027S PO P4 5P ③ -16123HTTNMS027S5HTP4130205P④ -14 Oxidizing 123 PO OX POS025OX PO P4 125 19 5P ③ -35 TNMS027S1 1.5P ④ -14 M9-MT2a4ps For high carbon steels 23 HC-SPNut taps12NT SCMR025O SP P3 125 19 2.5P ①-131 For left handNH2025OHTⅡ2202025P⑦ -28threads23SP LH SPR027S--L SP P3 130 20 2.5P ① -78PO LHPOS027S--LPOP45P③ -47 M25-MT4a8ps Taps / M25 × 1 123 HT LH TNMS027S5-L HT P4 130 20 5P ④ -67TNMS027S1-L1.5P④ -67 Standard 23 SP SPQ025M SP P2 125 19 2.5P ① -40 Oxidizing 123 SP OX SPR027SX SP P3 130 20 2.5P ① -64 PO POR025M PO P3 5P ③ -16 PO OX POS027SX PO P4 5P ③ -35 M50-MT1a0p0s 123 HT TNMR025M5 HT P3 125 19 5P ④ -14 Long 23 LS-SP SPR027SL20 SP P3 200 20 2.5P ① -89 TNMR025M1 1.5P ④ -14 SPR027SL25 250 ① -89 For tUhrneiTfaiaedpdss For left handthreads 123 HT LH TNMR025M5-L HT P3 125 19 5P ④ -67TNMR025M1-L1.5P④ -67 LS-PO POS027SL20 PO P4 200 5P ③ -53POS027SL25250③ -53 For WhtihtwrTeoaardtphss Taps / M26 × 3Standard 23 SP SPR026S SP P3 130 20 2.5P ① -40 123 LS-HT TNMR027S520 HT P3 200 20 5P ④ -77TNMR027S525250④ -77TNMR027S1202001.5P④ -77 PO POS026S PO P4 5P ③ -16 TNMR027S125 250 ④ -77 For oSTncrseeawwitpnhgresm(aadcsShuinsMeeds ) 123 HT TNMS026S5 HT P4 130 20 5P ④ -14 For left hand 123 LS-HT LH TNMR027S520L HT P3 200 20 5P ④ -83TNMS026S11.5P④ -14threadsTNMR027S120L1.5P④ -83 Oxidizing 123 PO OX POS026SX PO P4 130 20 5P ③ -35 For high carbon steels 23 HC-SP SCMR027S SP P3 130 20 2.5P ①-131 For Pipe thTreaadpss Taps / M26 × 2 For hard-to-machine 6⓾ EH-HT ETHMT027S5 HT P5 130 20 5P ④-121materialsETHMT027S12.5P④-121 FpoirpeAmtherrTeicaaadpnss Standard 23 SP SPR026Q SP P3 130 20 2.5P ① -40POPOS026QPOP45P③ -16123HTTNMS026Q5HTP4130205P④ -14Powdered356PM-SP SY027SSDPB SP P4 130 20 2.75P ①-167HSSLS-PM-SPSY027SSDPBK200①-173PM-POPY027STDPBPOP51305.5P③ -92 For MtinhiraTetauadrpess For left handthreads TNMS026Q1 1.5P ④ -14 LS-PM-PO PY027STDPBK 200 ③ -97123HT LHTNMS026Q5-LHTP4130205P④ -67For titanium alloys㉒ZET-BZETBMS027SSPP4130203P①-152TNMS026Q1-L1.5P④ -67For stainless steels2349SU-SPSUMR027SSPP3130202.5P①-100 12349 SU-PO PUMS027S PO P4 130 20 5P ③ -62 129 SU-HT TUMS027S4 HT P4 130 20 4P ④ -89 TUMS027S1 1.5P ④ -89 For deep hole use 12349 SU-S-SP SSMR027S-SU SP P3 130 20 2.5P ①-117 Sizes-78 Codes shown in ( ) are available while supplies last.