Dies Outside Thickness diameter D T Spiral Fluted Taps (for blind hole) D NPSM Solid Round Dies for American Parallel Pipe Threads Spiral Fluted Taps (for through hole) Specification Front face For icon explanation, refer to P.50 Spiral Pointed Taps (for through hole) TYPE:1 D ≦ 50 TYPE:2 D ≧ 63 Hand Taps Segment:3G Cemented Carbide Taps Size Code D T Clearance Recess Type Stock (mm) (mm) holes For NPSM Threads NPSM1/16-27 TYJSM010NEBC 38 13 4 1 △ NPSM1/8-27 TYJSM020NEBC 38 13 4 1 △ Roll Taps NPSM1/4-18 TYJSM040NEBC 38 13 5 1 △ NPSM3/8-18 TYMSM060NEBC 50 16 5 1 △ NPSM1/2-14 TYMSM080NEBC 50 16 5 1 △ NPSM3/4-14 TYRSM120NEBC 63 20 6 2 △ Special Thread Taps Simple Inspection Tools NPSM1 -11.5 TYUSM160NEBC 75 25 6 2 △ NPSM1 1/4-11.5 TYUSM200NEBC 75 25 8 2 △ Pipe Taps Thread Mills Dies Center Drills Centering Tools JIS Di-15 ◎=Standard ○=Semi standard △=Made to order 626 For improvement, spec may change without advance notice.