Pipe Tap Series Overall length L Thread length ℓ Shank length ℓs Shank dia. Ds Size of square K Length of square ℓk ⑧ DIN PO V G Spiral Fluted Taps (for blind hole) ① DIN Spiral Pointed Taps for Parallel Pipe Threads, Coated Spiral Fluted Taps (for through hole) ② Specification ■Adopting the optimum coating for the tapping Coating condition. Spiral Pointed Taps (for through hole) ③ Recommended Tapping Speeds depending on Materials Low carbon steels Medium carbon steels High carbon steels Alloy steels 低炭素鋼 中炭素鋼 高炭素鋼 合金鋼 10 20 10 20 10 20 10 20 〜 〜 〜 〜 Hand Taps ( m / min ) ( m / min ) ( m / min ) ( m / min ) ④ TYPE:1 Cemented Carbide Taps ⑤ Segment:1H Roll Taps ⑥ L ℓ ℓs Ds K ℓk No. of TYPE Size Class Code Chamfer (mm) (mm) (mm) (mm) (mm) (mm) flutes For G Threads G 1/8-28 - 9930R02TI 5P 90 19 46 7 5.5 8 3 1 G 1/4-19 - 9930R04TI 5P 100 21 51 11 9 12 3 1 Special Thread Taps Simple Inspection Tools G 3/8-19 - 9930R06TI 5P 100 21 51 12 9 12 3 1 ⑦ G 1/2-14 - 9930R08TI 5P 125 24 64 16 12 15 3 1 Pipe Taps ⑧ Thread Mills Premium Thread Mills ⑨ Dies ⑩ Center Drills Centering Tools ⑪ DIN ※ This product is different from JIS products in shape and dimensions, please be careful when using. ⑧-66