Roll Tap Series N+RS/N-RS Thread Forming Taps for Non-Ferrous Materials Spiral Fluted Taps (for blind hole) Size Class Code Chamfer L ℓ ℓn ℓs Ds K ℓk Lobe Type Stock (mm) (mm) (mm) (mm) (mm) (mm) (mm) NRSM9012NP 4P M12 × 1.25 G9 82 26 - 42 8.5 6.5 9 6 6 △ NRSM9012NB 2P NRSM7012MP 4P Spiral Fluted Taps (for through hole) M12 × 1 G7 82 26 - 42 8.5 6.5 9 6 6 △ NRSM7012MB 2P NRSM9014QP 4P G9 NRSM9014QB 2P M14 × 2 88 26 - 45 10.5 8 11 6 6 △ NRSM0014QP 4P G10 Spiral Pointed Taps (for through hole) NRSM0014QB 2P NRSM9014OP 4P M14 × 1.5 G9 88 26 - 45 10.5 8 11 6 6 △ NRSM9014OB 2P NRSM8014MP 4P M14 × 1 G8 88 26 - 45 10.5 8 11 6 6 △ NRSM8014MB 2P Hand Taps NRSM9016QP 4P G9 NRSM9016QB 2P M16 × 2 95 26 - 48 12.5 10 13 6 6 △ NRSM0016QP 4P G10 NRSM0016QB 2P Cemented Carbide Taps NRSM9016OP 4P M16 × 1.5 G9 95 26 - 48 12.5 10 13 6 6 △ NRSM9016OB 2P NRSM8016MP 4P M16 × 1 G8 95 26 - 48 12.5 10 13 6 6 △ NRSM8016MB 2P Roll Taps NRSM9018OP 4P M18 × 1.5 G9 100 33 - 51 14 11 14 6 6 △ NRSM9018OB 2P NRSM1020RP 4P M20 × 2.5 G11 105 33 - 50 15 12 15 6 7 △ NRSM1020RB 2P NRSM9020OP 4P Special Thread Taps Simple Inspection Tools M20 × 1.5 G9 105 33 - 50 15 12 15 6 7 △ NRSM9020OB 2P For Unified Threads Size Class Code Chamfer L ℓ ℓn ℓs Ds K ℓk Lobe Type Stock (mm) (mm) (mm) (mm) (mm) (mm) (mm) Pipe Taps NRSM5UN0BP 4P No.0-80UNF G5 36 6.3 - 24 3 2.5 5 3 2 △ NRSM5UN0BB 2P NRSM5UN1CP 4P No.1-72UNF G5 42 7.2 - 27 3 2.5 5 3 2 △ NRSM5UN1CB 2P NRSM4UN2EP 4P Thread Mills G4 NRSM4UN2EB 2P NRSM5UN2EP 4P No.2-56UNC G5 42 8.1 - 27 3 2.5 5 4 3 △ NRSM5UN2EB 2P NRSM7UN2EP 4P Dies G7 NRSM7UN2EB 2P NRSM4UN3FP 4P G4 NRSM4UN3FB 2P No.3-48UNC 46 8.1 14 29 3 2.5 5 4 4 △ NRSM5UN3FP 4P G5 Center Drills NRSM5UN3FB 2P NRSM5UN4HP 4P G5 NRSM5UN4HB 2P NRSM6UN4HP 4P No.4-40UNC G6 46 9 14 26 4 3.2 6 4 4 △ Centering Tools NRSM6UN4HB 2P NRSM7UN4HP 4P G7 NRSM7UN4HB 2P NRSM5UN4FP 4P No.4-48UNF G5 46 9 14 26 4 3.2 6 4 4 △ NRSM5UN4FB 2P JIS RO-11 ◎=Standard ○=Semi standard △=Made to order 506 For improvement, spec may change without advance notice.