
Overall length L ℓ Pin length Bored hole dia. Bored hole dia. (GO) d1 (NOT-GO) d2 d1 length ℓ1 d2 length ℓ2 Shank dia. Ds Size of square K Length of square ℓk ⑦ JIS Size Code L ℓ d1 d2 ℓ1 ℓ2 Ds K ℓk TYPE MSRP Spiral Fluted Taps (for blind hole) (mm) (mm) (mm) (mm) (mm) (mm) (mm) (mm) (mm) ① M12 × 1.25 CPRT012N 110 27.4 11.36 11.50 7.7 19.7 12 9 12 2 ¥2,900 □ M12 × 1 CPRT012M 110 27.4 11.49 11.59 7.7 19.7 12 9 12 2 ¥2,900 □ For Unified Threads No.2-56UNC CPRTUN2E 46 8 1.96 2.04 1.5 6.5 3 2.5 5 1 ¥1,800 □ Spiral Fluted Taps (for through hole) No.2-64UNF CPRTUN2D 46 8 1.98 2.06 1.5 6.5 3 2.5 5 1 ¥1,800 □ ② No.3-48UNC CPRTUN3F 46 8 2.25 2.35 1.5 6.5 3 2.5 5 1 ¥2,100 □ No.3-56UNF CPRTUN3E 46 8 2.29 2.37 1.5 6.5 3 2.5 5 1 ¥2,100 □ No.4-40UNC CPRTUN4H 46 8.5 2.54 2.64 1.5 7 4 3.2 6 1 ¥2,000 □ No.4-48UNF CPRTUN4F 46 8.5 2.59 2.68 1.5 7 4 3.2 6 1 ¥2,000 □ Spiral Pointed Taps (for through hole) ③ No.5-40UNC CPRTUN5H 46 8.5 2.87 2.97 1.5 7 4 3.2 6 1 ¥2,100 □ No.5-44UNF CPRTUN5G 46 8.5 2.90 2.99 1.5 7 4 3.2 6 1 ¥2,100 □ No.6-32UNC CPRTUN6J 52 10.5 3.11 3.22 2.25 8.25 5 4 7 1 ¥2,100 □ No.6-40UNF CPRTUN6H 52 10.5 3.19 3.29 2.25 8.25 5 4 7 1 ¥2,100 □ No.8-32UNC ¥2,300 □ Hand Taps CPRTUN8J 52 10.5 3.78 3.89 2.25 8.25 5 4 7 1 ④ No.8-36UNF CPRTUN8I 52 10.5 3.81 3.91 2.25 8.25 5 4 7 1 ¥2,300 □ No.10-24UNC CPRTUNAM 59.5 12.5 4.30 4.44 2.5 10 5.5 4.5 7 1 ¥2,320 □ No.10-32UNF CPRTUNAJ 59.5 12.5 4.44 4.53 2.5 10 5.5 4.5 7 1 ¥2,320 □ No.12-24UNC CPRTUNCM 61.5 16.5 4.96 5.07 3.75 12.75 6 4.5 7 1 ¥2,500 □ Cemented Carbide Taps No.12-28UNF CPRTUNCK 61.5 16.5 5.03 5.13 3.75 12.75 6 4.5 7 1 ¥2,500 □ ⑤ 1/4-20UNC CPRTU04N 61.5 16.5 5.73 5.86 3.75 12.75 6 4.5 7 1 ¥2,600 □ 1/4-28UNF CPRTU04K 61.5 16.5 5.91 6.00 3.75 12.75 6 4.5 7 1 ¥2,600 □ 5/16-18UNC CPRTU05O 90 19.4 7.23 7.38 4.7 14.7 8 6.2 9 2 ¥2,800 □ 5/16-24UNF CPRTU05M 90 19.4 7.42 7.53 4.7 14.7 8 6.2 9 2 ¥2,800 □ Roll Taps 3/8-16UNC ¥2,850 □ ⑥ CPRTU06P 100 23.4 8.72 8.89 6.7 16.7 10 8 11 2 3/8-24UNF CPRTU06M 100 23.4 8.99 9.10 6.7 16.7 10 8 11 2 ¥2,850 □ 7/16-14UNC CPRTU07Q 110 27.4 10.20 10.40 7.7 19.7 12 9 12 2 ¥2,900 □ 7/16-20UNF CPRTU07N 110 27.4 10.48 10.62 7.7 19.7 12 9 12 2 ¥2,900 □ 1/2-13UNC CPRTU08R 110 27.4 11.70 11.92 7.7 19.7 12 9 12 2 ¥3,100 □ Special Thread Taps Simple Inspection Tools ⑦ 1/2-20UNF CPRTU08N 110 27.4 12.06 12.20 7.7 19.7 12 9 12 2 ¥3,100 □ Pipe Taps ⑧ Thread Mills Premium Thread Mills ⑨ Dies ⑩ Center Drills Centering Tools ⑪ JIS ※ = Specified Distribution Items. Made to order products. □=In stock at manufacturer. ⑦-74