Spiral Fluted Taps (for blind hole)Spiral Fluted Taps(for through hole)Spiral Pointed Taps(for through hole)Hand TapsCementedCarbide TapsRoll TapsSpecial Thread TapsSimple Inspection ToolsPipe TapsThread MillsPremium Thread MillsDiesCenter DrillsCentering Tools ③ Spiral Pointed Tap Series for through hole Overall Thread Thread + Neck Shank Shank Size of Length oflengthlengthlengthlengthdia.squaresquareLℓℓnℓsDsKℓk JIS PO LH Spiral Pointed Taps for Left Hand Threads ① Size Class Code Chamfer L (mm) ℓ (mm) ℓn(mm) ℓs(mm) Ds(mm) K(mm) ℓk(mm) No. offlutes TYPE MSRPM18 × 2.5P4POS018R--L5P10033-5114111432¥10,300 ※ M18 × 1.5 P4 POS018O--L 5P 100 33 - 51 14 11 14 3 2 ¥10,300 ※ M20 × 2.5 P4 POS020R--L 5P 105 33 - 50 15 12 15 3 3 ¥14,000 ※ M20 × 1.5 P4 POS020O--L 5P 105 33 - 50 15 12 15 3 3 ¥14,000 ※ ② M20 × 1 P3 POR020M--L 5P 105 18 - 50 15 12 15 3 4 ¥17,700 ※ M22 × 2.5 P4 POS022R--L 5P 115 33 - 55 17 13 16 3 3 ¥17,900 ※ M22 × 1.5 P4 POS022O--L 5P 115 33 - 55 17 13 16 3 3 ¥17,900 ※ M24 × 3 P4 POS024S--L 5P 120 39 - 55 19 15 18 3 3 ¥22,300 ※ M24 × 1.5 P4 POS024O--L 5P 120 39 - 55 19 15 18 3 3 ¥22,300 ※ ③ M27 × 3 P4 POS027S--L 5P 130 39 - 60 20 15 18 4 3 ¥31,500 ※ M27 × 1.5 P4 POS027O--L 5P 130 39 - 60 20 15 18 4 3 ¥31,500 ※ M30 × 3.5 P5 POT030T--L 5P 135 46 - 62 23 17 20 4 3 ¥40,200 ※ M30 × 1.5 P4 POS030O--L 5P 135 46 - 62 23 17 20 4 3 ¥40,200 ※ For Unified Threads ④ 1/4-20UNC P2 POQU04N--L 5P 62 15 26 33 6 4.5 7 3 1 ¥1,900 ※ 1/4-28UNF P2 POQU04K--L 5P 62 15 26 33 6 4.5 7 3 1 ¥1,900 ※ 5/16-18UNC P3 PORU05O--L 5P 70 19 - 36 6.2 5 8 3 2 ¥2,680 ※ 5/16-24UNF P2 POQU05M--L 5P 70 19 - 36 6.2 5 8 3 2 ¥2,680 ※ ⑤ 3/8-16UNC P3 PORU06P--L 5P 75 23 - 38 7 5.5 8 3 2 ¥3,440 ※3/8-24UNFP2POQU06M--L5P7523-3875.5832¥3,440 ※ 7/16-14UNC P3 PORU07Q--L 5P 82 26 - 42 8.5 6.5 9 3 2 ¥4,840 ※ 7/16-20UNF P3 PORU07N--L 5P 82 26 - 42 8.5 6.5 9 3 2 ¥4,840 ※ 1/2-13UNC P3 PORU08R--L 5P 88 26 - 45 10.5 8 11 3 2 ¥5,140 ※ ⑥ 1/2-20UNF P3 PORU08N--L 5P 88 26 - 45 10.5 8 11 3 2 ¥5,140 ※ For Whitworth Threads 1/4W20 P3 PORW04N--L 5P 62 15 26 33 6 4.5 7 3 1 ¥1,900 ※ 5/16W18 P3 PORW05O--L 5P 70 19 - 36 6.2 5 8 3 2 ¥2,680 ※ 3/8W16 P3 PORW06P--L 5P 75 23 - 38 7 5.5 8 3 2 ¥3,440 ※ ⑦ 1/2W12 P3 PORW08S--L 5P 88 26 - 45 10.5 8 11 3 2 ¥5,140 ※ 5/8W11 P3 PORW10U--L 5P 95 26 - 48 12.5 10 13 3 2 ¥7,660 ※ 3/4W10 P4 POSW12V--L 5P 105 33 - 50 15 12 15 3 3 ¥14,000 ※ ⑧ ⑨ ⑩ ⑪ JIS ③-47 ※ = Specified Distribution Items. Made to order products.