Roll Tap Series N+RZ/N-RZ Thread Forming Taps for Steels 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) NRZM9014OP 4P M14 × 1.5 G9 88 26 - 45 10.5 8 11 8 6 △ NRZM9014OB 2P NRZM8014MP 4P Spiral Fluted Taps (for through hole) M14 × 1 G8 88 26 - 45 10.5 8 11 8 6 △ NRZM8014MB 2P NRZM9016QP 4P G9 NRZM9016QB 2P M16 × 2 95 26 - 48 12.5 10 13 8 6 △ NRZM0016QP 4P G10 Spiral Pointed Taps (for through hole) NRZM0016QB 2P NRZM9016OP 4P M16 × 1.5 G9 95 26 - 48 12.5 10 13 8 6 △ NRZM9016OB 2P NRZM9020OP 4P G9 Hand Taps NRZM9020OB 2P M20 × 1.5 105 33 - 50 15 12 15 8 7 △ NRZM0020OP 4P G10 NRZM0020OB 2P Cemented Carbide Taps Roll Taps Special Thread Taps Simple Inspection Tools Pipe Taps Thread Mills Dies Center Drills Centering Tools JIS RO-5 ◎=Standard ○=Semi standard △=Made to order 500 For improvement, spec may change without advance notice.