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 Thread forming taps 12 N+RZ NRZP54.0IP RO G5 52 5 4P ⑥ -15 For aluminum ⑮⑯⑰⑱ AL+SP ASHPR4.0I SP P3 52 5 2.5P ①-134 TMa3ps for steels NRZP54.0IB 2P ⑥ -15 ⑲⑳㉑ AL-SP 1.5P SY4.0IRLENA 1.5P ①-135 NRZP64.0IP G6 4P ⑥ -15 ⑱⑲㉑ LA-HT TY4.0IRLEN5 HT P3 52 5 5P ④-108 NRZP64.0IB 2P ⑥ -15 TY4.0IRLENA 1.5P ④-108 TMa4ps NRZP74.0IP G7 4P ⑥ -15 Carbide ⑲㉑ N-CT LA TCNR4.0I3A HT P3 52 5 3P ⑤ -3 NRZP74.0IB 2P ⑥ -15 TCNR4.0I1A 1.5P ⑤ -3 TMa5ps NRZP84.0IP G8 4P ⑥ -15 Carbide spiralfluted taps⑱⑲㉑N-CT-SP SY4.0IRKWB SP P3 52 5 2.5P ⑤ -20NRZP84.0IB2P⑥ -15Carbide spiralpointed taps⑮⑯⑰⑱⑲⑳㉑N-CT-POPCNR4.0IPOP35255P⑤ -21 Long 12 LS-N-RZ NRZF64.0IP10 RO G6 100 5 4P ⑥ -23 Thread forming taps ⑱⑲㉑ N+RS NRSP54.0IP RO G5 52 5 4P ⑥ -27 TMa6ps NRZF64.0IB10 2P ⑥ -23 for non-ferrousmaterials NRSP54.0IB 2P ⑥ -27NRZF74.0IP10G74P⑥ -23NRSP64.0IPG64P⑥ -27 NRZF74.0IB10 2P ⑥ -23 NRSP64.0IB 2P ⑥ -27 TMa8ps For high carbon steels 23 HC+SP235HC-PO SCPQ4.0I SP P2 52 5 2.5P ①-130PCMQ4.0IPOP25255P③ -76 NRSP74.0IP G7 4P ⑥ -27NRSP74.0IB2P⑥ -27 Oxidizing 23 HC+SP OX SCPQ4.0IX SP P2 52 5 2.5P ①-132 NRSP84.0IP G8 4P ⑥ -27 MT1a0ps For hard-to-machine 356 EH-POmaterials6⓾EH-HT EPHMR4.0I PO P3 52 5 4.5P ③ -82ETHMR4.0I5HTP35255P④-120 NRSP84.0IB 2P ⑥ -27Long⑱⑲㉑LS-N-RSNRSF64.0IP10ROG610054P⑥ -36 ETHMR4.0I1 2.5P ④-120 NRSF64.0IB10 2P ⑥ -36 MT1a2ps Powdered 356 PM-SP SY4.0IRDPB SP P3 52 5 2.75P ①-166HSSLS-PM-SPS44.0IRDPBE100①-172 NRSF74.0IP10 G7 4P ⑥ -36NRSF74.0IB102P⑥ -36 PM-PO PY4.0IRDPB PO 52 5.5P ③ -92 For plastics ㉔ PL1 TPLM4.0I3 HT P5 52 5 3P ④-118 M1-MT8a.5ps For titanium alloys LS-PM-PO P44.0IRDPBE 100 ③ -96 For high speed㉒ZET-BZETBMR4.0ISPP35253P①-15212 F-SP VFSHMQ4.0I SP P2 52 5 2.5P ①-176F-SLVFSHMQ4.0ILSL5P② -26 ZET-P ZETPMR4.0I SL 5P ② -20 Long 12 LS-F-SP S44.0IQFEVES SP P2 100 5 2.5P ①-180 M9-MT2a4ps For nickel basealloys 129㉓ ZEN-B ZENBMR4.0I SP P3 52 5 3P ①-160 LS-F-SL L44.0IQFEVE SL 5P ② -30ZEN-PZENPMR4.0IPO4.5P③ -86Thread forming taps1234OL+RZOLRZP64.0IPROG65254P⑥ -42 For medium hardness carbon steels 345 MHSL 1109101042 SL P3 63 5 5P ② -4 for dry tapping 59⑲ OLRZP74.0IP G7 ⑥ -42 M25-MT4a8ps Long 345 MHSLCarbide taps for hard materials7EH-CT 2109101042 SL P3 100 5 5P ② -4 High performance 1234 HP+RZ HRZP64.0IP RO G6 52 5 4P ⑥ -49EHCR4.0I5HTP35255P⑤ -24thread forming taps59⑲HRZP64.0IB2P⑥ -49 Carbide taps for ultra hard materials 8 UH-CT UHCR4.0I5 HT P3 52 5.5 5P ⑤ -28 HRZP74.0IP G7 4P ⑥ -49 M50-MT1a0p0s For stainless steels 2349 SU+SP SUPQ4.0I SP P2 52 5 2.5P ① -98 HRZP74.0IB 2P ⑥ -49 123 SU+SL SUPQ4.0IL SL P2 52 5 5P ② -16 Torqueless threadforming tapsShort chamfer1239⑲㉑SC-TL-RZ SRZM64.0I1 RO G6 52 5 1P ⑥ -58 For tUhrneiTfaiaedpdss 49 SU-PO PUMQ4.0I PO ③ -60 For deep hole use 234⑬ S-SP SSMQ4.0I SP P2 52 5 2.5P ①-121129SU-HTTUMQ4.0I4HTP25254P④ -881234S-POPSMQ4.0IPOP25255P③ -73 TUMQ4.0I1 1.5P ④ -88 Oversize 234⑬ S-SP SSMR4.0I SP P3 52 5 2.5P ①-121 For WhtihtwrTeoaardtphss Oversize 2349 SU+SP SUPR4.0I SP P3 52 5 2.5P ① -98SUPS4.0IP4① -98 1234 S-PO PSMR4.0I PO P3 52 5 5P ③ -73PSMS4.0IP4③ -73 123 SU-PO PUMR4.0I PO P3 52 5 5P ③ -60 Low spiral 23 LO-SP 8° LSHMQ4.0I8 SP P2 52 5 2.5P ①-142 For oSTncrseeawwitpnhgresm(aadcsShuinsMeeds ) 49 PUMS4.0I P4 ③ -60 LO-SP 15° LSHMQ4.0I15 ①-142For deep12349SU-S-SPSSMQ4.0I-SUSPP25252.5P①-117LO-SP 20°LSHMQ4.0I20①-142hole use1239LS-SU-S-SPSY4.0IQGEXESSPP210052.5P①-118For helical coil wire⑱⑲㉑AL-HT STITW4.0I1LEB5HTⅠb605.55P⑦ -3 For Pipe thTreaadpss SY4.0IQGEXGS 150 ①-118 screw thread inserts TW4.0I1LEBA 1.5P ⑦ -3LS-SU-S-POPY4.0IQGEXESPO1004.5P③ -70⑮⑯⑰⑱AL-SP STISW4.0I1LENSPⅠb605.52.5P⑦ -10 PY4.0IQGEXGS 150 ③ -70 ⑲⑳㉑ AL-PO STI PW4.0I1LEB PO 5P ⑦ -18 FpoirpeAmtherrTeicaaadpnss For hard-to-machine materials12349SU2-SP SU2MQ4.0I SP P2 52 5 3P ①-114For cast irons⑫⑬FC-HTTY4.0IRAEN5HTP35255P④ -92⑱⑲㉑ N-RS STI RW4.0I4LENP RO G4 60 5.5 4P ⑦ -25RW4.0I4LENB2P⑦ -25 For MtinhiraTetauadrpess TY4.0IRAENA 1.5P ④ -92 Oversize ⑱⑲㉑ AL-HT STI TW4.0I3LEB5 HT Ⅰb+30 60 5.5 5P ⑦ -3Carbide⑫⑬⑯N-CT FCTCNR4.0I3HTP35253P⑤ -11TW4.0I3LEBA1.5P⑦ -3TCNR4.0I11.5P⑤ -11⑮⑯⑰⑱⑲⑳㉑AL-SP STISW4.0I3LENSPⅠb+30605.52.5P⑦ -10 Long shank, ⑫⑬⑯ LS-N-CT TY4.0IRAWB3E HT P3 100 5 3P ⑤ -18 Carbide ⑲㉑ N-CT LA STI TW4.0I1LWB5 HT Ⅰb 60 5.5 5P ⑦ -26 carbide TY4.0IRAWBAE 1.5P ⑤ -18 TW4.0I1LWBA 1.5P ⑦ -26 Nut taps 12 NT NH24.0I HT Ⅱb 100 2.8 27P ⑦ -27 Sizes-12 Codes shown in ( ) are available while supplies last.