③ Spiral Pointed Tap Series for through hole Overall length L Thread length ℓ Thread + Neck ℓn length Shank length ℓs Shank dia. Ds Size of square K Length of square ℓk JIS PO LH Spiral Pointed Taps for Left Hand Threads L ℓ ℓn ℓs Ds K ℓk No. of TYPE MSRP Size Class Code Chamfer Spiral Fluted Taps (for blind hole) (mm) (mm) (mm) (mm) (mm) (mm) (mm) flutes ① M18 × 2.5 P4 POS018R--L 5P 100 33 - 51 14 11 14 3 2 ¥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 ※ Spiral Fluted Taps (for through hole) M20 × 1 P3 POR020M--L 5P 105 18 - 50 15 12 15 3 4 ¥17,700 ※ ② 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 ※ Spiral Pointed Taps (for through hole) 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 Hand Taps 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 ※ Cemented Carbide Taps 3/8-16UNC P3 PORU06P--L 5P 75 23 - 38 7 5.5 8 3 2 ¥3,440 ※ ⑤ 3/8-24UNF P2 POQU06M--L 5P 75 23 - 38 7 5.5 8 3 2 ¥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 ※ Roll Taps 1/2-20UNF ¥5,140 ※ ⑥ P3 PORU08N--L 5P 88 26 - 45 10.5 8 11 3 2 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 ※ Special Thread Taps Simple Inspection Tools 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 ※ Pipe Taps ⑧ Thread Mills Premium Thread Mills ⑨ Dies ⑩ Center Drills Centering Tools ⑪ JIS ③-47 ※ = Specified Distribution Items. Made to order products.