
⑧ Pipe Tap Series Overall length L Thread length ℓ Shank dia. Ds Size of square K Length of square ℓk JIS NPS Spiral Fluted Taps (for blind hole) ① JIS Hand Taps for American Parallel Pipe Threads Spiral Fluted Taps (for through hole) ② Specification ■The NPS tap is a hand tap for American parallel pipe threads and is used for products whose main purpose is the tightness of the threaded Spiral Pointed Taps (for through hole) part in connecting pipe parts and the like. ③ Recommended Tapping Speeds depending on Materials Low carbon steels Medium carbon steels High carbon steels 低炭素鋼 中炭素鋼 高炭素鋼 5 10 〜 5 10〜 5 10 〜 Hand Taps ( m / min ) ( m / min ) ( m / min ) ④ TYPE:1 TYPE:2 Cemented Carbide Taps ⑤ Segment:1G Roll Taps Basic ⑥ L ℓ Ds K ℓk No. of MSRP Size Class Code Chamfer major dia TYPE (mm) (mm) (mm) (mm) (mm) (mm) flutes For American Pipe Threads 1/16-27 NPS ANSI G TNPS01L 5P 7.770 54 17 8 6 9 4 1 ¥4,040 ※ 1/8-27 NPS ANSI G TNPS02L 5P 10.117 55 19 8 6 9 4 2 ¥4,040 ※ Special Thread Taps Simple Inspection Tools ⑦ 1/4-18 NPS ANSI G TNPS04O 5P 13.426 62 28 11 9 12 4 2 ¥5,920 ※ 3/8-18 NPS ANSI G TNPS06O 5P 16.866 65 28 14 11 14 4 2 ¥9,810 ※ 1/2-14 NPS ANSI G TNPS08Q 5P 20.980 80 35 18 14 17 4 2 ¥16,000 ※ 3/4-14 NPS ANSI G TNPS12Q 5P 26.325 85 35 23 17 20 4 2 ¥26,600 ※ Pipe Taps 1 -11 1/2 NPS ANSI G TNPS16T 5P 32.934 95 45 26 21 24 5 2 ¥49,500 ※ ⑧ 1 1/4-11 1/2 NPS ANSI G TNPS20T 5P 41.689 105 45 32 26 30 5 2 ¥76,100 ※ 1 1/2-11 1/2 NPS ANSI G TNPS24T 5P 47.760 110 45 38 29 32 6 2 ¥108,000 ※ 2 -11 1/2 NPS ANSI G TNPS32T 5P 59.797 120 50 46 35 38 6 2 ¥180,000 ※ Thread Mills Premium Thread Mills ⑨ Dies ⑩ Center Drills Centering Tools ⑪ JIS ⑧-97 ※ = Specified Distribution Items. Made to order products.