Dies Outside Thickness Position of diameter basic dia D T ℓg Spiral Fluted Taps (for blind hole) D NPTF Solid Round Dies for American Dryseal Taper 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 Hand Taps Cemented Carbide Taps TYPE:2 TYPE:3 Roll Taps Segment:3G Size Code D T ℓg Clearance Recess Type Stock (mm) (mm) (mm) holes Special Thread Taps Simple Inspection Tools For NPTF Threads NPTF1/16-27 TYJNF010NEBC 38 13 6 4 ○ 1 △ NPTF1/8-27 TYJNF020NEBC 38 13 6 4 ○ 1 △ NPTF1/4-18 TYJNF040NEBC 38 18 10 5 ○ 2 △ Pipe Taps NPTF3/8-18 TYMNF060NEBC 50 22 10 5 ○ 2 △ NPTF1/2-14 TYMNF080NEBC 50 22 12 6 2 △ NPTF3/4-14 TYRNF120NEBC 63 24 12 6 3 △ NPTF1 -11.5 TYUNF160NEBC 75 30 15 6 ○ 3 △ Thread Mills NPTF1 1/4-11.5 TYUNF200NEBC 75 30 15.5 6 ○ 3 △ Dies Center Drills Centering Tools JIS Di-19 ◎=Standard ○=Semi standard △=Made to order 630 For improvement, spec may change without advance notice.