Pipe Tap Series Spiral Fluted Taps (for blind hole) SP-NPT Spiral Fluted Taps for American Taper Pipe Threads Spiral Fluted Taps (for through hole) Specification E NPT 3/4 ~ Spiral Pointed Taps (for through hole) Recommended Tapping Speeds depending on Materials ow carbon steels 〜5 Hand Taps For icon explanation, refer to P.50 TYPE:1 TYPE:2 Cemented Carbide Taps g g Roll Taps Segment:1G Basic L ℓ ℓg Ds K ℓk No. of Size Class Code Chamfer major dia (mm) (mm) (mm) (mm) (mm) (mm) flutes Type Stock (mm) For American Pipe Threads NPT 1/16-27 ANSI G SNPT01L 2.5P 7.770 54 17 12 8 6 9 3 1 △ Special Thread Taps Simple Inspection Tools NPT 1/8-27 ANSI G SNPT02L 2.5P 10.117 55 19 12.05 8 6 9 3 2 △ NPT 1/4-18 ANSI G SNPT04O 2.5P 13.426 62 28 17.45 11 9 12 3 2 △ NPT 3/8-18 ANSI G SNPT06O 2.5P 16.866 65 28 17.65 14 11 14 3 2 △ NPT 1/2-14 ANSI G SNPT08Q 2.5P 20.980 80 35 22.85 18 14 17 4 2 △ Pipe Taps NPT 3/4-14 ANSI G SNPT12Q 2.5P 26.325 85 35 22.95 23 17 20 4 2 △ NPT 1 -11.5 ANSI G SNPT16T 2.5P 32.934 95 45 27.4 26 21 24 4 2 △ Thread Mills Dies Center Drills Centering Tools JIS Pipe-45 ◎=Standard ○=Semi standard △=Made to order 594 For improvement, spec may change without advance notice.