
■ ZELX NI PO STI is the spiral pointed tap for nickel base alloys which, with nickel as main composition, have much higher corrosion Nitride+Oxide resistance and much higher heat resistance Recommended Tapping Speed depending on Materials than steels, and produces threads oversize enough to accommodate helical coil wire thread
| Low carbon steels | Medium carbon steels | Stainless steels | Nickel base alloys | inserts. | |
| 5低炭素鋼10 | 5中炭素鋼10 | 5ステンレス鋼10 | ニッケル基合金510 | ||
| (m/min) | (m/min) | ( m/ min) | (m/min) |
TYPE:1 TYPE:2
Segment:1E
| Size | Class | Code | Chamfer | L (inch) | ℓ (inch) | ℓn (inch) | Ds (inch) | K (inch) | ℓk (inch) | No. of flutes | TYPE |
| Fo i | r Unified | i Threads | |||||||||
| No.2-56UNC | GH2 | Y87200 | 4.5P | 1.875 | 0.335 | 0.562 | 0.141 | 0.11 | 0.187 | 2 | 1 |
| No.4-40UNC | GH1 | Y87203 | 4.5P | 2 | 0.413 | 0.687 | 0.141 | 0.11 | 0.187 | 3 | 1 |
| No.4-40UNC | GH2 | Y87204 | 4.5P | 2 | 0.413 | 0.687 | 0.141 | 0.11 | 0.187 | 3 | 1 |
| No.6-32UNC | GH2 | Y87208 | 4.5P | 2.375 | 0.531 | 0.875 | 0.194 | 0.152 | 0.25 | 3 | 1 |
| No.6-32UNC | GH3 | Y87224 | 4.5P | 2.375 | 0.531 | 0.875 | 0.194 | 0.152 | 0.25 | 3 | 1 |
| No.6-40UNF | GH2 | Y87209 | 4.5P | 2.125 | 0.453 | 0.75 | 0.168 | 0.131 | 0.25 | 3 | 1 |
| No.8-32UNC | GH2 | Y87210 | 4.5P | 2.375 | 0.571 | 0.937 | 0.22 | 0.165 | 0.281 | 3 | 1 |
| No.8-32UNC | GH3 | Y87226 | 4.5P | 2.375 | 0.571 | 0.937 | 0.22 | 0.165 | 0.281 | 3 | 1 |
| No.10-24UNC | GH2 | Y87212 | 4.5P | 2.5 | 0.591 | 1 | 0.255 | 0.191 | 0.312 | 3 | 2 |
| No.10-24UNC | GH3 | Y87228 | 4.5P | 2.5 | 0.591 | 1 | 0.255 | 0.191 | 0.312 | 3 | 2 |
| No.10-32UNF | GH2 | Y87213 | 4.5P | 2.5 | 0.591 | 1 | 0.255 | 0.191 | 0.312 | 3 | 2 |
| No.10-32UNF | GH3 | Y87229 | 4.5P | 2.5 | 0.591 | 1 | 0.255 | 0.191 | 0.312 | 3 | 2 |
| 1/4-20UNC | GH2 | Y87248 | 4.5P | 2.718 | 0.669 | 1.125 | 0.318 | 0.238 | 0.375 | 3 | 3 |
| 1/4-20UNC | GH3 | Y87258 | 4.5P | 2.718 | 0.669 | 1.125 | 0.318 | 0.238 | 0.375 | 3 | 3 |
| 1/4-28UNF | GH2 | Y87249 | 4.5P | 2.718 | 0.669 | 1.125 | 0.318 | 0.238 | 0.375 | 3 | 3 |
| 1/4-28UNF | GH3 | Y87259 | 4.5P | 2.718 | 0.669 | 1.125 | 0.318 | 0.238 | 0.375 | 3 | 3 |
| 5/16-18UNC | GH3 | Y87260 | 4.5P | 2.937 | 0.748 | 1.25 | 0.381 | 0.286 | 0.437 | 3 | 3 |