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Material:HSS Alloy Steel HSS-ESurface treatment:bright, Tin-coated, nitriding
| Size Pitch | Thread Designation | #of Flutes | Drill Size |
| 1/8-27 | NPS | 4 | R |
| 1/4-18 | NPS | 4 | 7/16 |
| 3/8-18 | NPS | 4 | 37/64 |
| 1/2-14 | NPS | 4 | 45/64 |
| 3/4-14 | NPS | 5 | 59/64 |
| 1-11-1/2 | NPS | 5 | 1-5/32 |
| 1-1/4-11-1/12 | NPS | 5 | 1-1/2 |
| 1-1/2-11-1/2 | NPS | 7 | 1-47/64 |
| Size Pitch | Thread Designation | #of Flutes |
| 1/8-27 | NPT | 4 |
| 1/4-18 | NPT | 4 |
| 3/8-18 | NPT | 4 |
| 1/2-14 | NPT | 4 |
| 3/4-14 | NPT | 5 |
| 1-11-1/2 | NPT | 5 |
| 1-1/4-11-1/12 | NPT | 5 |
| 1-1/2-11-1/2 | NPT | 7 |
Some of products in our company
straight pipe tap NPT NPS DIN5157 HSS