
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 JIS TYPE:1 TYPE:2 Spiral Fluted Taps (for blind hole) ① Spiral Fluted Taps (for through hole) ② TYPE:3 TYPE:4 Spiral Pointed Taps (for through hole) ③ Hand Taps Recommended class ④ Segment:1J Size Class Code Chamfer L ℓ ℓn ℓs Ds K ℓk Lobe TYPE MSRP (mm) (mm) (mm) (mm) (mm) (mm) (mm) For Metric Threads M1 × 0.25 G4 SURZ41.0BB 2P 36 4.5 - 24 3 2.5 5 4 1 ¥5,120 Cemented Carbide Taps ⑤ M1.2 × 0.25 G4 SURZ41.2BB 2P 36 4.5 - 24 3 2.5 5 4 1 ¥5,120 M1.4 × 0.3 G4 SURZ41.4CB 2P 36 5.4 - 24 3 2.5 5 4 1 ¥4,800 M1.6 × 0.35 G4 SURZ41.6DB 2P 36 6.3 - 24 3 2.5 5 4 2 ¥4,610 M1.6 × 0.2 G3 SURZ31.6AB 2P 36 3.6 - 24 3 2.5 5 4 2 ¥4,800 Roll Taps M1.7 × 0.35 G4 SURZ41.7DB 2P 36 6.3 - 24 3 2.5 5 4 2 ¥4,610 ⑥ M2 × 0.4 G4 SURZ42.0EB 2P 42 7.2 - 27 3 2.5 5 4 3 ¥4,130 M2.3 × 0.4 G4 SURZ42.3EB 2P 42 7.2 - 27 3 2.5 5 4 3 ¥4,010 M2.5 × 0.45 G4 SURZ42.5FB 2P 46 8.1 14 29 3 2.5 5 4 4 ¥3,860 M2.6 × 0.45 G5 SURZ52.6FB 2P 46 8.1 14 29 3 2.5 5 4 4 ¥3,860 Special Thread Taps Simple Inspection Tools M3 × 0.5 G5 SURZ53.0GB 2P 46 9 14 26 4 3.2 6 4 4 ¥3,810 ⑦ For Unified Threads No.2-56UNC G4 SURZ4UN2EB 2P 42 8.1 - 27 3 2.5 5 4 3 ¥4,470 No.4-40UNC G5 SURZ5UN4HB 2P 46 9 14 25 4 3.2 6 4 4 ¥4,340 No.6-32UNC G5 SURZ5UN6JB 2P 52 11 17 27 5 4 7 4 4 ¥4,090 Pipe Taps ⑧ Number of oil grooves : Metric thread: M2.6 and smaller = non, M3 = 2 Unified thread: No.4 and smaller = non, No.6 = 2 Thread Mills Premium Thread Mills ⑨ Dies ⑩ Center Drills Centering Tools ⑪ JIS ※ = Specified Distribution Items. Made to order products. ⑥-60