ISO TAPS METRIC, GUN, N - General purpose use - Suitable for materials up to 1000N/mm2 - Through holes - Depths up to approx. 3 x d1 ISO TAPS METRIC, SPIRAL FLUTE, N - General purpose use - Suitable for materials up to 1000N/mm2 - Blind holes - Depths up to approx. 2.5 x d1 Size Pitch drill ø Item # Item # Intermediate Bright Finish Intermediate Blu Finish M 3 x 0.5 2.5 T393 0300 T394 0300 M 4 x 0.7 3.3 T393 0400 T394 0400 M 5 x 0.8 4.2 T393 0500 T394 0500 M 6 x 1 5.0 T393 0600 T394 0600 M 8 x 1.25 6.8 T393 0800 T394 0800 M 10 x 1.5 8.5 T393 1000 T394 1000 M 12 x 1.75 10.2 T393 1200 T394 1200 Size Pitch drill ø Item # Item # Bottoming Bright Finish Bottoming Blu Finish M 3 x 0.5 2.5 T397 0300 T396 0300 M 4 x 0.7 3.3 T397 0400 T396 0400 M 5 x 0.8 4.2 T397 0500 T396 0500 M 6 x 1 5.0 T397 0600 T396 0600 M 8 x 1.25 6.8 T397 0800 T396 0800 M 10 x 1.5 8.5 T397 1000 T396 1000 M 12 x 1.75 10.2 T397 1200 T396 1200 ISO TAPS UNC, SPIRAL FLUTE, N - General purpose use - Suitable for materials up to 1000N/mm2 - Blind holes - Depths up to approx. 2.5 x d1 Size TPI drill Ø Item # Item # Bottoming Bright Finish Bottoming Blu Finish #10 24 3.8 T425 0483 • 1/4 20 5.1 T425 0635 T426 0635 5/16 18 6.6 T425 0794 T426 0794 3/8 16 8.0 T425 0953 T426 0953 7/16 14 9.4 T425 1111 T426 1111 1/2 13 10.8 T425 1270 T426 1270 5/8 11 13.5 T425 1588 T426 1588 3/4 10 16.5 T425 1905 T426 1905 7/8 9 19.5 T425 2223 • 1 8 22.2 T425 2540 • ISO TAPS UNC, GUN, N - General purpose use - Suitable for materials up to 1000N/mm2 - Through holes - Depths up to approx. 3 x d1 Size TPI drill Ø Item # Item # Intermediate Bright Finish Intermediate Blu Finish #10 24 3.8 T422 0483 T423 0483 #12 24 4.5 • T423 0549 1/4 20 5.1 T422 0635 T423 0635 5/16 18 6.6 T422 0794 T423 0794 3/8 16 8.0 T422 0953 T423 0953 7/16 14 9.4 T422 1111 T423 1111 1/2 13 10.8 T422 1270 T423 1270 5/8 11 13.5 T422 1588 T423 1588 3/4 10 16.5 T422 1905 T423 1905 7/8 9 19.5 • T423 2223 1 8 22.2 • T423 2540 ISO TAPS PIPE, NATIONAL SERIES - General purpose use, materials up to approx. 1000 N/mm2 - Suitable for both hand and machine operations - Taper pipe reamer recommended prior to tapping Size TPI drill ø Item # NPT (National Pipe Taper) 15° Chamfer (1:16 Taper Rate) 1/8 27 8.2 T487 1029 1/4 18 10.8 T487 1372 3/8 18 14.0 T487 1715 1/2 14 17.5 T487 2134 3/4 14 23.0 T487 2667 1 11-1/2 28.5 T487 3340 1-1/4 11-1/2 37.0 T487 4216 ISO TAPS PIPE, RC (BSPT), STRAIGHT FLUTE - General purpose use - Suitable for materials up to 1000N/mm2 - Through & blind holes - Suitable for both hand and machine operations - Taper pipe reamer recommended prior to tapping Rc (BSPT) thread forms d1 TPI drill ø Item # Item # Rc (BSPT) 1:16 Taper Rate Brt Finish TiN Finish 1/8 28 8.4 T475 0973 T476 0973 1/4 19 10.8 T475 1316 T476 1316 3/8 19 14.5 T475 1666 T476 1666 1/2 14 18.0 T475 2096 T476 2096 3/4 14 23.0 T475 2644 • 1 11 29.0 T475 3325 • 1-1/4 11 38.0 T475 4191 • 1-1/2 11 44.0 T475 4780 • 2 11 55.0 T475 5961 • Other sizes available on request: Metric, Metric Fine, UNC, UNF, BSW Other sizes available on request: Metric, Metric Fine, UNC, UNF, BSW 445 AB FA MH SP BC LU PT TC AD HT MR SC CS MA PU TG TP AU LR PA SS EI ME SE TM WE
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