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 M2.6 × 0.35 G6 NRSM62.6DP 4P 46 6.3 14 29 3 2.5 5 4 5 ¥2,410 ※ M2.6 × 0.35 G6 NRSM62.6DB 2P 46 6.3 14 29 3 2.5 5 4 5 ¥2,410 ※ M3 × 0.35 G5 NRSM53.0DP 4P 46 6.5 14 26 4 3.2 6 4 5 ¥2,510 ※ M3 × 0.35 G5 NRSM53.0DB 2P 46 6.5 14 26 4 3.2 6 4 5 ¥2,510 ※ Spiral Fluted Taps (for through hole) M3 × 0.35 G6 NRSM63.0DP 4P 46 6.5 14 26 4 3.2 6 4 5 ¥2,510 ※ ② M3 × 0.35 G6 NRSM63.0DB 2P 46 6.5 14 26 4 3.2 6 4 5 ¥2,510 ※ M3.5 × 0.35 G5 NRSM53.5DP 4P 52 6.5 16 29 5 4 7 4 5 ¥2,510 ※ M3.5 × 0.35 G5 NRSM53.5DB 2P 52 6.5 16 29 5 4 7 4 5 ¥2,510 ※ M3.5 × 0.35 G6 NRSM63.5DP 4P 52 6.5 16 29 5 4 7 4 5 ¥2,510 ※ Spiral Pointed Taps (for through hole) ③ M3.5 × 0.35 G6 NRSM63.5DB 2P 52 6.5 16 29 5 4 7 4 5 ¥2,510 ※ M4 × 0.5 G6 NRSM64.0GP 4P 52 9 17 29 5 4 7 4 5 ¥2,160 ※ M4 × 0.5 G6 NRSM64.0GB 2P 52 9 17 29 5 4 7 4 5 ¥2,160 ※ M4 × 0.5 G7 NRSM74.0GP 4P 52 9 17 29 5 4 7 4 5 ¥2,160 ※ M4 × 0.5 ¥2,160 ※ Hand Taps G7 NRSM74.0GB 2P 52 9 17 29 5 4 7 4 5 ④ M5 × 0.5 G6 NRSM65.0GP 4P 60 9 22 33 5.5 4.5 7 4 5 ¥2,160 ※ M5 × 0.5 G6 NRSM65.0GB 2P 60 9 22 33 5.5 4.5 7 4 5 ¥2,160 ※ M5 × 0.5 G7 NRSM75.0GP 4P 60 9 22 33 5.5 4.5 7 4 5 ¥2,160 ※ M5 × 0.5 G7 NRSM75.0GB 2P 60 9 22 33 5.5 4.5 7 4 5 ¥2,160 ※ Cemented Carbide Taps M6 × 0.75 G6 NRSM66.0JP 4P 62 15 26 33 6 4.5 7 4 4 ¥2,300 ※ ⑤ M6 × 0.75 G6 NRSM66.0JB 2P 62 15 26 33 6 4.5 7 4 4 ¥2,300 ※ M6 × 0.75 G7 NRSM76.0JP 4P 62 15 26 33 6 4.5 7 4 4 ¥2,300 ※ M6 × 0.75 G7 NRSM76.0JB 2P 62 15 26 33 6 4.5 7 4 4 ¥2,300 ※ M6 × 0.5 G6 NRSM66.0GP 4P 62 9 26 33 6 4.5 7 4 5 ¥2,300 ※ Roll Taps M6 × 0.5 ¥2,300 ※ ⑥ G6 NRSM66.0GB 2P 62 9 26 33 6 4.5 7 4 5 M7 × 1 G6 NRSM67.0MP 4P 70 19 - 36 6.2 5 8 4 6 ¥2,040 ※ M7 × 1 G6 NRSM67.0MB 2P 70 19 - 36 6.2 5 8 4 6 ¥2,040 ※ M7 × 1 G7 NRSM77.0MP 4P 70 19 - 36 6.2 5 8 4 6 ¥2,040 ※ M7 × 1 G7 NRSM77.0MB 2P 70 19 - 36 6.2 5 8 4 6 ¥2,040 ※ Special Thread Taps Simple Inspection Tools ⑦ M7 × 0.75 G7 NRSM77.0JP 4P 70 19 - 36 6.2 5 8 4 6 ¥3,030 ※ M7 × 0.75 G7 NRSM77.0JB 2P 70 19 - 36 6.2 5 8 4 6 ¥3,030 ※ M8 × 1.25 G7 NRSM78.0NP 4P 70 19 - 36 6.2 5 8 6 6 ¥2,360 M8 × 1.25 G7 NRSM78.0NB 2P 70 19 - 36 6.2 5 8 6 6 ¥2,360 M8 × 1.25 Pipe Taps G8 NRSM88.0NP 4P 70 19 - 36 6.2 5 8 6 6 ¥2,360 ⑧ M8 × 1.25 G8 NRSM88.0NB 2P 70 19 - 36 6.2 5 8 6 6 ¥2,360 M8 × 1 G7 NRSM78.0MP 4P 70 19 - 36 6.2 5 8 6 6 ¥2,690 ※ M8 × 1 G7 NRSM78.0MB 2P 70 19 - 36 6.2 5 8 6 6 ¥2,690 ※ M8 × 0.75 G7 NRSM78.0JP 4P 70 19 - 36 6.2 5 8 6 6 ¥3,030 ※ Thread Mills Premium Thread Mills M8 × 0.75 G7 NRSM78.0JB 2P 70 19 - 36 6.2 5 8 6 6 ¥3,030 ※ ⑨ M10 × 1.5 G7 NRSM7010OP 4P 75 23 - 38 7 5.5 8 6 6 ¥3,000 M10 × 1.5 G7 NRSM7010OB 2P 75 23 - 38 7 5.5 8 6 6 ¥3,000 M10 × 1.5 G8 NRSM8010OP 4P 75 23 - 38 7 5.5 8 6 6 ¥3,000 ※ M10 × 1.5 G8 NRSM8010OB 2P 75 23 - 38 7 5.5 8 6 6 ¥3,000 ※ Dies M10 × 1.25 ⑩ G7 NRSM7010NP 4P 75 23 - 38 7 5.5 8 6 6 ¥3,000 ※ M10 × 1.25 G7 NRSM7010NB 2P 75 23 - 38 7 5.5 8 6 6 ¥3,000 ※ M10 × 1.25 G8 NRSM8010NP 4P 75 23 - 38 7 5.5 8 6 6 ¥3,000 ※ M10 × 1.25 G8 NRSM8010NB 2P 75 23 - 38 7 5.5 8 6 6 ¥3,000 ※ M10 × 1 G7 NRSM7010MP 4P 75 23 - 38 7 5.5 8 6 6 ¥3,580 ※ Center Drills Centering Tools ⑪ M10 × 1 G7 NRSM7010MB 2P 75 23 - 38 7 5.5 8 6 6 ¥3,580 ※ M12 × 1.75 G8 NRSM8012PP 4P 82 26 - 42 8.5 6.5 9 6 6 ¥4,270 ※ M12 × 1.75 G8 NRSM8012PB 2P 82 26 - 42 8.5 6.5 9 6 6 ¥4,270 ※ JIS ※ = Specified Distribution Items. Made to order products. ⑥-28