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 MainmaterialSymbol Code L Ds ℓc Productpage Tap selection MainmaterialSymbol Code L Ds ℓc Productpage Note1 Note1 For cast Carbide ⑫⑬⑯ N-CT FC TCNRU07N3 HT P3 80 8 3P ⑤ -13 Standard Oversize 123 HT TNMSU08N5 HT P4 88 10.5 5P ④ -23 TMa3ps irons TCNRU07N1 1.5P ⑤ -13 TNMSU08N1 1.5P ④ -23 For helical coil wire ⑱⑲㉑ AL-HT STI TWU07N1LEB5 HT Ⅰb 88 10.5 5P ⑦ -5 For left hand 23 SP LH SPQU08N--L SP P2 88 10.5 2.5P ① -78 screw thread inserts TWU07N1LEBA 1.5P ⑦ -5 threads PO LH PORU08N--L PO P3 5P ③ -47 TMa4ps Taps / 7/16-24UNS Oxidizing 123 SP OX SPQU08NX SP P2 88 10.5 2.5P ① -64PO OXPORU08NXPOP35P③ -36 TMa5ps Standard 123 HT TNMRU07M5 HT P3 82 8.5 5P ④ -23 LongTNMRU07M11.5P④ -23 23 LS-SP SPQU08NL15 SP P2 150 10.5 2.5P ① -90SPQU08NL20200① -90 Taps / 7/16-28UNEFTMa6psStandard 23 SP SPQU07K SP P2 82 8.5 2.5P ① -42 LS-PO PORU08NL15 PO P3 150 5P ③ -54PORU08NL20200③ -54123LS-HTTNMQU08N515HTP2150 10.55P④ -80 PO POQU07K PO 5P ③ -17 TNMQU08N520 200 ④ -80 TMa8ps 123 HT TNMQU07K5 HT P2 82 8.5 5P ④ -23TNMQU07K11.5P④ -23 TNMQU08N115 150 1.5P ④ -80TNMQU08N120200④ -80 MT1a0ps Taps / 1/2-13UNC Thread forming taps 12 N-RZ NRZM8U08NP RO G8 88 10.5 4P ⑥ -17for steelsNRZM8U08NB2P⑥ -17Standard23SPSPRU08RSPP38810.52.5P① -42For hard-to-machine materialsPowdered HSS356PM-POPYU08NSDPBPOP48810.55.5P③ -93 PO PORU08R PO 5P ③ -17 For stainless steels 2349 SU-SP SUMQU08N SP P2 88 10.5 2.5P ①-101 MT1a2ps 123 HT TNMRU08R5 HT P3 88 10.5 5P ④ -23 12349 SU-PO PUMRU08N PO P3 88 10.5 5P ③ -62TNMRU08R11.5P④ -23129SU-HTTUMRU08N4HTP38810.54P④ -90 Oversize 123 HT TNMSU08R5 HT P4 88 10.5 5P ④ -23 TUMRU08N1 1.5P ④ -90 M1-MT8a.5ps For left hand TNMSU08R1 1.5P ④ -23 For cast Carbide ⑫⑬⑯ N-CT FC TCNRU08N3 HT P3 85 9 3P ⑤ -1323SP LHSPRU08R--LSPP38810.52.5P① -78ironsTCNRU08N11.5P⑤ -13 threads PO LH PORU08R--L PO 5P ③ -47 For helical coil wire ⑱⑲㉑ AL-HT STI TWU08N1LEB5 HT Ⅰb 95 12.5 5P ⑦ -5 M9-MT2a4ps Oxidizing 123 SP OX SPRU08RX SP P3 88 10.5 2.5P ① -64 screw thread inserts TWU08N1LEBA 1.5P ⑦ -5 Long PO OX23LS-SP PORU08RX PO 5P ③ -36SPRU08RL15SPP315010.52.5P① -90Taps / 1/2-24UNS M25-MT4a8ps SPRU08RL20 200 ① -90 Standard 123 HT TNMRU08M5 HT P3 88 10.5 5P ④ -23 LS-PO PORU08RL15 PO 150 5P ③ -54 TNMRU08M1 1.5P ④ -23 M50-MT1a0p0s 123 LS-HT PORU08RL20 200 ③ -54TNMRU08R515HTP3150 10.55P④ -79Taps / 1/2-28UNEF TNMRU08R520 200 ④ -79 Standard 23 SP SPQU08K SP P2 88 10.5 2.5P ① -42 For tUhrneiTfaiaedpdss TNMRU08R115 150 1.5P ④ -80 PO POQU08K PO 5P ③ -17TNMRU08R120200④ -80123HTTNMQU08K5HTP28810.55P④ -23 Thread forming taps 12 N-RZ NRZM8U08RP RO G8 88 10.5 4P ⑥ -17 TNMQU08K1 1.5P ④ -23 For WhtihtwrTeoaardtphss for steels NRZM8U08RB 2P ⑥ -17For hard-to-machine materialsPowdered HSS356PM-POPYU08RSDPBPOP48810.55.5P③ -93Taps / 1/2-32UN For stainless steels 2349 SU-SP SUMRU08R SP P3 88 10.5 2.5P ①-101 Standard 123 HT TNMQU08J5 HT P2 88 10.5 5P ④ -23 For oSTncrseeawwitpnhgresm(aadcsShuinsMeeds ) 12349 SU-PO PUMRU08R PO P3 88 10.5 5P ③ -62 TNMQU08J1 1.5P ④ -23129SU-HTTUMRU08R4HTP38810.54P④ -90TUMRU08R11.5P④ -90Taps / 9/16-12UNC For Pipe thTreaadpss For cast Carbide ⑫⑬⑯ N-CT FC TCNRU08R3 HT P3 85 9 3P ⑤ -13 StandardironsTCNRU08R11.5P⑤ -13 23 SP SPRU09S SP P3 95 12.5 2.5P ① -42POPORU09SPO5P③ -17 FpoirpeAmtherTreicaaadpnss For helical coil wire ⑱⑲㉑ AL-HT STI TWU08R1LEB5 HT Ⅰb 95 12.5 5P ⑦ -5screw thread insertsTWU08R1LEBA1.5P⑦ -5123 HT TNMRU09S5 HT P3 95 12.5 5P ④ -23TNMRU09S11.5P④ -23 Taps / 1/2-20UNF Taps / 9/16-18UNF For MtinhiraTetauadrpess Standard 23 SP SPQU08N SP P2 88 10.5 2.5P ① -42 StandardPOPORU08NPOP35P③ -17 23 SP SPQU09O SP P2 95 12.5 2.5P ① -42POPORU09OPOP35P③ -17 123 HT TNMRU08N5 HT P3 88 10.5 5P ④ -23 123 HT TNMRU09O5 HT P3 95 12.5 5P ④ -23 TNMRU08N1 1.5P ④ -23 TNMRU09O1 1.5P ④ -23 Sizes-108 Codes shown in ( ) are available while supplies last.