Overall Thread Shank Size of Length of length length dia. square square L ℓ Ds K ℓk PF (for blind hole) Spiral Fluted Taps Hand Taps for Parallel Pipe Threads Specification (for through hole) Spiral Fluted Taps E PF 3/4 ~ Recommended Tapping Speeds depending on Materials (for through hole) Spiral Pointed Taps Medium carbon steels 5〜10 For icon explanation, refer to P.50 Hand Taps TYPE:1 TYPE:2 Carbide Taps Cemented Segment:1G Roll Taps 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 1/16-28 Ⅱ TH2F01K-8 3.5P 7.723 55 19 8 6 9 4 1 △ TH2F02K 3.5P ◎ Simple Inspection Tools Special Thread Taps PF 1/8-28 Ⅱ 9.728 55 19 8 6 9 4 2 TH2F02K1 1.5P △ TH2F04- 3.5P ◎ PF 1/4-19 Ⅱ 13.157 62 28 11 9 12 4 2 TH2F04-1 1.5P △ TH2F06- 3.5P ◎ Pipe Taps PF 3/8-19 Ⅱ 16.662 65 28 14 11 14 4 2 TH2F06-1 1.5P △ TH2F08Q 3.5P ◎ PF 1/2-14 Ⅱ 20.955 80 35 18 14 17 4 2 TH2F08Q1 1.5P △ PF 5/8-14 Ⅱ TH2F10Q 3.5P 22.911 82 35 19 15 18 4 2 △ Thread Mills TH2F12Q 3.5P ◎ PF 3/4-14 Ⅱ 26.441 85 35 23 17 20 4 2 TH2F12Q1 1.5P △ PF 7/8-14 Ⅱ TH2F14Q 3.5P 30.201 90 40 24 19 22 4 2 △ TH2F16U 3.5P ◎ Dies PF 1 -11 Ⅱ 33.249 95 45 26 21 24 4 2 TH2F16U1 1.5P △ TH2F20U 3.5P ○ PF 1 1/4-11 Ⅱ 41.910 105 45 32 26 30 4 2 TH2F20U1 1.5P △ TH2F24U 3.5P ○ PF 1 1/2-11 Ⅱ 47.803 110 45 38 29 32 6 2 Center Drills TH2F24U1 1.5P △ TH2F32U 3.5P ○ PF 2 -11 Ⅱ 59.614 120 50 46 35 38 6 2 TH2F32U1 1.5P △ PF 2 1/2-11 Ⅱ TH2F40U 3.5P 75.184 145 65 55 41 44 8 2 △ PF 3 -11 Ⅱ TH2F48U 3.5P 87.884 155 65 65 50 52 8 2 △ Centering Tools PF 3 1/2-11 Ⅱ TH2F56U 3.5P 100.330 165 68 70 54 58 8 2 △ PF 4 -11 Ⅱ TH2F64U 3.5P 113.030 170 70 75 58 62 10 2 △ JIS ◎=Standard ○=Semi standard △=Made to order Pipe-34 For improvement, spec may change without advance notice. 583