⑦ Special Thread Taps / Simple Inspection Tools 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 SIT Simple Thread Inspection Tools Size Class Code L ℓ ℓn ℓs Ds K ℓk TYPE MSRP Spiral Fluted Taps (for blind hole) (mm) (mm) (mm) (mm) (mm) (mm) (mm) ① M24 × 1 NB 6H ITM6024MN 120 8 65 55 19 15 18 6 ¥23,500 □ For Unified Threads № 2-56UNC GB 2B ITM2UN2EG 42 4.5 12 26 3 2.5 5 1 ¥7,100 □ № 2-56UNC WB 2B ITM2UN2EN 42 3.5 12 26 3 2.5 5 2 ¥7,100 □ Spiral Fluted Taps (for through hole) № 2-64UNF GB 2B ITM2UN2DG 42 4.5 12 26 3 2.5 5 1 ¥7,100 □ ② № 2-64UNF WB 2B ITM2UN2DN 42 3.5 12 26 3 2.5 5 2 ¥7,100 □ № 3-48UNC GB 2B ITM2UN3FG 46 6.5 14 28 3 2.5 5 1 ¥6,860 □ № 3-48UNC WB 2B ITM2UN3FN 46 3.5 14 28 3 2.5 5 2 ¥6,860 □ № 3-56UNF GB 2B ITM2UN3EG 46 6.5 14 28 3 2.5 5 1 ¥6,860 □ Spiral Pointed Taps (for through hole) ③ № 3-56UNF WB 2B ITM2UN3EN 46 3.5 14 28 3 2.5 5 2 ¥6,860 □ № 4-40UNC GB 2B ITM2UN4HG 46 6.5 14 25 4 3.2 6 1 ¥6,500 □ № 4-40UNC WB 2B ITM2UN4HN 46 3.5 14 25 4 3.2 6 2 ¥6,500 □ № 4-48UNF GB 2B ITM2UN4FG 46 6.5 14 25 4 3.2 6 1 ¥6,500 □ № 4-48UNF WB ¥6,500 □ Hand Taps 2B ITM2UN4FN 46 3.5 14 25 4 3.2 6 2 ④ № 5-40UNC GB 2B ITM2UN5HG 52 6.5 16 28 5 4 7 1 ¥6,200 □ № 5-40UNC WB 2B ITM2UN5HN 52 3.5 16 28 5 4 7 2 ¥6,200 □ № 5-44UNF GB 2B ITM2UN5GG 52 6.5 16 28 5 4 7 1 ¥6,200 □ № 5-44UNF WB 2B ITM2UN5GN 52 3.5 16 28 5 4 7 2 ¥6,200 □ Cemented Carbide Taps № 6-32UNC GB 2B ITM2UN6JG 52 7 17 27 5 4 7 1 ¥6,200 □ ⑤ № 6-32UNC WB 2B ITM2UN6JN 52 3.5 17 27 5 4 7 2 ¥6,200 □ № 6-40UNF GB 2B ITM2UN6HG 52 7 17 27 5 4 7 1 ¥6,200 □ № 6-40UNF WB 2B ITM2UN6HN 52 3.5 17 27 5 4 7 2 ¥6,200 □ № 8-32UNC GB 2B ITM2UN8JG 60 9 22 31 5.5 4.5 7 1 ¥6,140 □ Roll Taps № 8-32UNC WB ¥6,140 □ ⑥ 2B ITM2UN8JN 60 5 22 31 5.5 4.5 7 2 № 8-36UNF GB 2B ITM2UN8IG 60 9 22 31 5.5 4.5 7 1 ¥6,140 □ № 8-36UNF WB 2B ITM2UN8IN 60 5 22 31 5.5 4.5 7 2 ¥6,140 □ № 10-24UNC GB 2B ITM2UNAMG 60 9.5 22 32 5.5 4.5 7 1 ¥6,140 □ № 10-24UNC WB 2B ITM2UNAMN 60 5 22 32 5.5 4.5 7 2 ¥6,140 □ Special Thread Taps Simple Inspection Tools ⑦ № 10-32UNF GB 2B ITM2UNAJG 60 9.5 22 32 5.5 4.5 7 1 ¥6,140 □ № 10-32UNF WB 2B ITM2UNAJN 60 5 22 32 5.5 4.5 7 2 ¥6,140 □ № 12-24UNC GB 2B ITM2UNCMG 62 9.5 26 32 6 4.5 7 1 ¥6,100 □ № 12-24UNC WB 2B ITM2UNCMN 62 5 26 32 6 4.5 7 2 ¥6,100 □ № 12-28UNF Pipe Taps GB 2B ITM2UNCKG 62 9.5 26 32 6 4.5 7 1 ¥6,100 □ ⑧ № 12-28UNF WB 2B ITM2UNCKN 62 5 26 32 6 4.5 7 2 ¥6,100 □ 1/4-20UNC GB 2B ITM2U04NG 62 15 26 32 6 4.5 7 1 ¥6,100 □ 1/4-20UNC WB 2B ITM2U04NN 62 10 26 32 6 4.5 7 2 ¥6,100 □ 1/4-28UNF GB 2B ITM2U04KG 62 12 26 32 6 4.5 7 1 ¥6,100 □ Thread Mills Premium Thread Mills 1/4-28UNF WB 2B ITM2U04KN 62 7 26 32 6 4.5 7 2 ¥6,100 □ ⑨ 5/16-18UNC GB 2B ITM2U05OG 70 15 34 36 6.2 5 8 3 ¥6,250 □ 5/16-18UNC WB 2B ITM2U05ON 70 10 34 36 6.2 5 8 4 ¥6,250 □ 5/16-24UNF GB 2B ITM2U05MG 70 15 34 36 6.2 5 8 3 ¥6,250 □ 5/16-24UNF WB 2B ITM2U05MN 70 7 34 36 6.2 5 8 4 ¥6,250 □ Dies ⑩ 3/8-16UNC GB 2B ITM2U06PG 75 17 37 38 7 5.5 8 3 ¥6,340 □ 3/8-16UNC WB 2B ITM2U06PN 75 10 37 38 7 5.5 8 4 ¥6,340 □ 3/8-24UNF GB 2B ITM2U06MG 75 17 37 38 7 5.5 8 3 ¥6,340 □ 3/8-24UNF WB 2B ITM2U06MN 75 10 37 38 7 5.5 8 4 ¥6,340 □ 7/16-14UNC GB 2B ITM2U07QG 82 17 40 42 8.5 6.5 9 3 ¥6,560 □ Center Drills Centering Tools ⑪ 7/16-14UNC WB 2B ITM2U07QN 82 10 40 42 8.5 6.5 9 4 ¥6,560 □ 7/16-20UNF GB 2B ITM2U07NG 82 17 40 42 8.5 6.5 9 3 ¥6,560 □ 7/16-20UNF WB 2B ITM2U07NN 82 10 40 42 8.5 6.5 9 4 ¥6,560 □ JIS ⑦-49 ※ = Specified Distribution Items. Made to order products. □=In stock at manufacturer.