① Spiral Fluted Tap Series for blind hole Overall length L Chamfer + full thread ℓt Thread length ℓ Thread + Neck ℓn length Shank length ℓs Shank dia. Ds Size of square K Length of square ℓk JIS S-SP Spiral Fluted Taps (for blind hole) ① JIS Short Spiral Fluted Taps, Deep Hole Use Spiral Fluted Taps (for through hole) ② Specification ■Due to short thread portion, friction becomes less and lubrication supply becomes better, and S-SP is the spiral fluted tap quite efficient for Spiral Pointed Taps (for through hole) Oxide tapping deep holes that are 2.5 times deeper ③ than the nominal dia. Recommended Tapping Speeds depending on Materials Medium carbon steels High carbon steels Alloy steels Ductile cast irons 中炭素鋼 高炭素鋼 合金鋼 強靱鋳鉄 5 10〜 5 10 〜 5 10 〜 5 10 〜 Hand Taps ( m / min ) ( m / min ) ( m / min ) ( m / min ) ④ TYPE:1 Cemented Carbide Taps ⑤ Roll Taps ⑥ TYPE:2 TYPE:3 Special Thread Taps Simple Inspection Tools ⑦ Oversize Segment:1C Pipe Taps L ℓt ℓ ℓn ℓs Ds K ℓk No. of TYPE ⑧ Size Class Code Chamfer MSRP (mm) (mm) (mm) (mm) (mm) (mm) (mm) (mm) flutes For Metric Threads M2 × 0.4 P1 SSMP2.0E 2.5P 42 4 7.2 12 27 3 2.5 5 2 1 ¥2,370 M2 × 0.4 P3 SSMR2.0E 2.5P 42 4 7.2 12 27 3 2.5 5 2 1 ¥2,370 ※ M2.3 × 0.4 Thread Mills Premium Thread Mills P1 SSMP2.3E 2.5P 42 4 7.2 12 27 3 2.5 5 2 1 ¥2,160 ※ ⑨ M2.3 × 0.4 P3 SSMR2.3E 2.5P 42 4 7.2 12 27 3 2.5 5 2 1 ¥2,160 ※ M2.5 × 0.45 P1 SSMP2.5F 2.5P 46 4 8.1 14 29 3 2.5 5 2 1 ¥1,820 ※ M2.5 × 0.45 P2 SSMQ2.5F 2.5P 46 4 8.1 14 29 3 2.5 5 2 1 ¥1,820 ※ M2.5 × 0.45 P3 SSMR2.5F 2.5P 46 4 8.1 14 29 3 2.5 5 2 1 ¥1,820 ※ Dies M2.6 × 0.45 P1 SSMP2.6F 2.5P 46 4 8.1 14 29 3 2.5 5 2 1 ¥1,820 ※ ⑩ M2.6 × 0.45 P3 SSMR2.6F 2.5P 46 4 8.1 14 29 3 2.5 5 2 1 ¥1,820 ※ M3 × 0.5 P1 SSMP3.0G-3 2.5P 46 5 9 14 26 4 3.2 6 3 1 ¥1,270 M3 × 0.5 P2 SSMQ3.0G 2.5P 46 5 9 14 26 4 3.2 6 3 1 ¥1,270 ※ M3 × 0.5 P3 SSMR3.0G 2.5P 46 5 9 14 26 4 3.2 6 3 1 ¥1,270 ※ Center Drills Centering Tools M3.5 × 0.6 ⑪ P1 SSMP3.5H-3 2.5P 52 7 11 16 29 5 4 7 3 1 ¥1,270 ※ M3.5 × 0.6 P2 SSMQ3.5H 2.5P 52 7 11 16 29 5 4 7 3 1 ¥1,270 ※ M4 × 0.7 P2 SSMQ4.0I 2.5P 52 7 11 17 29 5 4 7 3 1 ¥1,270 M4 × 0.7 P3 SSMR4.0I 2.5P 52 7 11 17 29 5 4 7 3 1 ¥1,270 ※ JIS ①-121 ※ = Specified Distribution Items. Made to order products.