| Distance Across Flats | Size Range |
| 11/16" | #0-5/16" |
| 25/32" | 3/8" |
| 7/8" | 7/16" |
| 1 1/16" | 1/2-9/16" |
| 1 7/16" | 11/16-3/4" |
| 1 5/8" | 7/8" |
| 1 13/16" | 1" |
| 2" | 1 1/8" |
| 2 3/16" | 1 1/4" |
| 2 3/8" | 1 3/8" |
| 2 9/16" | 1 1/2" |
| 3 1/8" | 1 5/8-1 7/8" |
| 3 1/2" | 2-2 1/4" |
| 4 1/2" | 2 3/8-2 3/4" |
| 5" | 2 7/8-3 1/2" |
| 6" | 3 5/8-4" |
| 7" | 4 1/4-5" |
| 8 | 5 1/4-6" |
HEXAGON PIPE DIES
NPS, NPSC, NPSF, NPSL, NPSM, NPT, NPTF RIGHT OR LEFT HAND
| Distance Across Flats | Size |
|
11/16
|
1/16-27
|
|
7/8
|
1/8-27
|
|
1 1/16
|
1/4-18
|
|
1 7/16
|
3/8-18
|
|
1 5/8
|
1/2-14
|
|
2"
|
3/4-14
|
|
2 3/8
|
1-11
1/2
|
|
3 1/8
|
1 1/4-11
1/2
|
|
3 1/2
|
1 1/2-11
1/2
|
|
4 1/2
|
2-11
1/2
|
|
5"
|
2 1/2-8
|
|
5"
|
3-8
|
|
6"
|
3 1/2-8
|
|
7"
|
4-8
|