Pipe Tap Series Spiral Fluted Taps (for blind hole) S-PT Hand Taps for Taper Pipe Threads, Short (ℓg) Type Spiral Fluted Taps (for through hole) Specification E PT 3/4 ~ Spiral Pointed Taps (for through hole) Recommended Tapping Speeds depending on Materials Medium 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 Pipe Threads PT 1/16-28 Ⅱ TSPT01K-8 2.5P 7.723 55 16.5 10.5 8 6 9 4 1 ○ Special Thread Taps Simple Inspection Tools PT 1/8-28 Ⅱ TSPT02K 2.5P 9.728 55 16.5 10.5 8 6 9 4 2 ◎ PT 1/4-19 Ⅱ TSPT04- 2.5P 13.157 62 19.5 12.5 11 9 12 4 2 ◎ PT 3/8-19 Ⅱ TSPT06- 2.5P 16.662 65 21 14 14 11 14 4 2 ◎ PT 1/2-14 Ⅱ TSPT08Q 2.5P 20.955 80 27 17 18 14 17 4 2 ◎ Pipe Taps PT 3/4-14 Ⅱ TSPT12Q 2.5P 26.441 85 29 19 23 17 20 4 2 ◎ PT 1 -11 Ⅱ TSPT16U 2.5P 33.249 95 35 22 26 21 24 5 2 ◎ PT 1 1/4-11 Ⅱ TSPT20U 2.5P 41.910 105 37.5 24.5 32 26 30 5 2 ○ PT 1 1/2-11 Ⅱ TSPT24U 2.5P 47.803 110 38.5 25.5 38 29 32 6 2 ○ Thread Mills PT 1 3/4-11 Ⅱ TSPT28U 2.5P 53.746 115 39.5 26.5 42 32 35 6 2 △ PT 2 -11 Ⅱ TSPT32U 2.5P 59.614 120 42.5 27.5 46 35 38 6 2 ○ PT 2 1/2-11 Ⅱ TSPT40U 2.5P 75.184 145 47 32 55 41 44 8 2 △ PT 3 -11 Ⅱ TSPT48U 2.5P 87.884 155 51 36 65 50 52 8 2 △ Dies Center Drills Centering Tools JIS Pipe-5 ◎=Standard ○=Semi standard △=Made to order 554 For improvement, spec may change without advance notice.