Pipe Tap Series Overall Thread Shank Size of Length of length length dia. square square L ℓ Ds K ℓk Spiral Fluted Taps (for blind hole) CT-PF Carbide Taps for Parallel Pipe Threads Spiral Fluted Taps (for through hole) Specification ■CT-PF is suitable for hard and abrasive materials such as cast irons. Spiral Pointed Taps (for through hole) Recommended Tapping Speeds depending on Materials Cast irons Ductile cast irons Brass castings TYPE:1 5〜10 5〜10 5〜10 (m/min) (m/min) (m/min) Hand Taps For icon explanation, refer to P.50 Cemented Carbide Taps Segment:1L Basic L ℓ Ds K ℓk No. of Size Class Code Chamfer major dia (mm) (mm) (mm) (mm) (mm) flutes Type Stock (mm) For Pipe Threads PF 1/8-28 Ⅱ TCPF02K 3.5P 9.728 55 19 8 6 9 4 1 △ Roll Taps PF 1/4-19 Ⅱ TCPF04- 3.5P 13.157 62 28 11 9 12 4 1 △ PF 3/8-19 Ⅱ TCPF06- 3.5P 16.662 65 28 14 11 14 4 1 △ PF 1/2-14 Ⅱ TCPF08Q 3.5P 20.955 80 35 18 14 17 4 1 △ PF 3/4-14 Ⅱ TCPF12Q 3.5P 26.441 85 35 23 17 20 4 1 △ Special Thread Taps Simple Inspection Tools PF 1 -11 Ⅱ TCPF16U 3.5P 33.249 95 45 26 21 24 4 1 △ Pipe Taps Thread Mills Dies Center Drills Centering Tools JIS Pipe-41 ◎=Standard ○=Semi standard △=Made to order 590 For improvement, spec may change without advance notice.