Overall length L Thread length ℓ Thread + Neck length ℓn Shank length ℓs Shank dia. Ds Size of square K Length of square ℓk ⑥ N-RS Roll Taps for Non-Ferrous Materials JIS Size Class Code Chamfer L ℓ ℓn ℓs Ds K ℓk Lobe TYPE MSRP Spiral Fluted Taps (for blind hole) (mm) (mm) (mm) (mm) (mm) (mm) (mm) ① No.3-48UNC G4 NRSM4UN3FB 2P 46 8.1 14 29 3 2.5 5 4 4 ¥1,850 ※ No.3-48UNC G5 NRSM5UN3FP 4P 46 8.1 14 29 3 2.5 5 4 4 ¥1,850 ※ No.3-48UNC G5 NRSM5UN3FB 2P 46 8.1 14 29 3 2.5 5 4 4 ¥1,850 ※ No.4-40UNC G5 NRSM5UN4HP 4P 46 9 14 25 4 3.2 6 4 4 ¥1,840 ※ Spiral Fluted Taps (for through hole) No.4-40UNC G5 NRSM5UN4HB 2P 46 9 14 25 4 3.2 6 4 4 ¥1,840 ※ ② No.4-40UNC G6 NRSM6UN4HP 4P 46 9 14 25 4 3.2 6 4 4 ¥1,840 ※ No.4-40UNC G6 NRSM6UN4HB 2P 46 9 14 25 4 3.2 6 4 4 ¥1,840 ※ No.4-40UNC G7 NRSM7UN4HP 4P 46 9 14 25 4 3.2 6 4 4 ¥1,840 ※ No.4-40UNC G7 NRSM7UN4HB 2P 46 9 14 25 4 3.2 6 4 4 ¥1,840 ※ Spiral Pointed Taps (for through hole) ③ No.4-48UNF G5 NRSM5UN4FP 4P 46 9 14 25 4 3.2 6 4 4 ¥1,840 ※ No.4-48UNF G5 NRSM5UN4FB 2P 46 9 14 25 4 3.2 6 4 4 ¥1,840 ※ No.4-48UNF G6 NRSM6UN4FP 4P 46 9 14 25 4 3.2 6 4 4 ¥1,840 ※ No.4-48UNF G6 NRSM6UN4FB 2P 46 9 14 25 4 3.2 6 4 4 ¥1,840 ※ No.5-40UNC ¥1,710 ※ Hand Taps G5 NRSM5UN5HP 4P 52 11 16 28 5 4 7 4 4 ④ No.5-44UNF G6 NRSM6UN5GB 2P 52 11 16 28 5 4 7 4 4 ¥1,710 ※ No.6-32UNC G5 NRSM5UN6JP 4P 52 11 17 27 5 4 7 4 4 ¥1,710 ※ No.6-32UNC G5 NRSM5UN6JB 2P 52 11 17 27 5 4 7 4 4 ¥1,710 ※ No.6-32UNC G6 NRSM6UN6JP 4P 52 11 17 27 5 4 7 4 4 ¥1,710 ※ Cemented Carbide Taps No.6-32UNC G6 NRSM6UN6JB 2P 52 11 17 27 5 4 7 4 4 ¥1,710 ※ ⑤ No.6-32UNC G7 NRSM7UN6JP 4P 52 11 17 27 5 4 7 4 4 ¥1,710 ※ No.6-32UNC G7 NRSM7UN6JB 2P 52 11 17 27 5 4 7 4 4 ¥1,710 ※ No.6-40UNF G5 NRSM5UN6HP 4P 52 11 17 27 5 4 7 4 4 ¥1,710 ※ No.6-40UNF G5 NRSM5UN6HB 2P 52 11 17 27 5 4 7 4 4 ¥1,710 ※ Roll Taps No.8-32UNC ¥1,720 ※ ⑥ G6 NRSM6UN8JP 4P 60 13 22 31 5.5 4.5 7 4 4 No.8-32UNC G6 NRSM6UN8JB 2P 60 13 22 31 5.5 4.5 7 4 4 ¥1,720 ※ No.8-32UNC G7 NRSM7UN8JP 4P 60 13 22 31 5.5 4.5 7 4 4 ¥1,720 ※ No.8-32UNC G7 NRSM7UN8JB 2P 60 13 22 31 5.5 4.5 7 4 4 ¥1,720 ※ No.8-32UNC G8 NRSM8UN8JP 4P 60 13 22 31 5.5 4.5 7 4 4 ¥1,720 ※ Special Thread Taps Simple Inspection Tools ⑦ No.8-36UNF G5 NRSM5UN8IP 4P 60 13 22 31 5.5 4.5 7 4 4 ¥1,720 ※ No.8-36UNF G5 NRSM5UN8IB 2P 60 13 22 31 5.5 4.5 7 4 4 ¥1,720 ※ No.8-36UNF G6 NRSM6UN8IB 2P 60 13 22 31 5.5 4.5 7 4 4 ¥1,720 ※ No.10-24UNC G6 NRSM6UNAMP 4P 60 13 22 32 5.5 4.5 7 4 4 ¥1,720 ※ Pipe Taps No.10-24UNC G6 NRSM6UNAMB 2P 60 13 22 32 5.5 4.5 7 4 4 ¥1,720 ※ ⑧ No.10-24UNC G7 NRSM7UNAMP 4P 60 13 22 32 5.5 4.5 7 4 4 ¥1,720 ※ No.10-24UNC G7 NRSM7UNAMB 2P 60 13 22 32 5.5 4.5 7 4 4 ¥1,720 ※ No.10-32UNF G6 NRSM6UNAJP 4P 60 13 22 32 5.5 4.5 7 4 4 ¥1,720 ※ No.10-32UNF G6 NRSM6UNAJB 2P 60 13 22 32 5.5 4.5 7 4 4 ¥1,720 ※ Thread Mills Premium Thread Mills No.10-32UNF G7 NRSM7UNAJP 4P 60 13 22 32 5.5 4.5 7 4 4 ¥1,720 ※ ⑨ No.10-32UNF G7 NRSM7UNAJB 2P 60 13 22 32 5.5 4.5 7 4 4 ¥1,720 ※ 1/4-20UNC G6 NRSM6U04NP 4P 62 15 26 33 6 4.5 7 4 4 ¥1,850 ※ 1/4-20UNC G6 NRSM6U04NB 2P 62 15 26 33 6 4.5 7 4 4 ¥1,850 ※ 1/4-20UNC G7 NRSM7U04NP 4P 62 15 26 33 6 4.5 7 4 4 ¥1,850 ※ Dies ⑩ 1/4-20UNC G7 NRSM7U04NB 2P 62 15 26 33 6 4.5 7 4 4 ¥1,850 ※ 1/4-20UNC G8 NRSM8U04NP 4P 62 15 26 33 6 4.5 7 4 4 ¥1,850 ※ 1/4-20UNC G8 NRSM8U04NB 2P 62 15 26 33 6 4.5 7 4 4 ¥1,850 ※ 1/4-28UNF G6 NRSM6U04KP 4P 62 15 26 33 6 4.5 7 4 4 ¥1,850 ※ 1/4-28UNF G6 NRSM6U04KB 2P 62 15 26 33 6 4.5 7 4 4 ¥1,850 ※ Center Drills Centering Tools ⑪ 1/4-28UNF G7 NRSM7U04KB 2P 62 15 26 33 6 4.5 7 4 4 ¥1,850 ※  umber of oil grooves : N Metric thread : M2.6 and smaller=non, M3 and larger=1 Unified thread : No.4 and smaller=non, No.5 and larger=1 For M6 and smaller, external centers of 2 thread chamfer taps are removed. JIS ※ = Specified Distribution Items. Made to order products. ⑥-30