Tapered Pipe Reamer (NPT)
Scientific Cutting Tools’ Tapered Pipe Reamer is built for machining NPT thread profiles with accuracy and efficiency. It reams the minor diameter on a taper and cuts a 45° chamfer to simplify threading and improve fit. Premium submicron carbide inserts deliver durability, while the optional AlTiN+ coating boosts performance in tough materials and high-speed applications.
| A | B | C | D | F | L | S | OAL | Flutes | Thread | Tool # | Uncoated EDP # | AlTiN+ EDP # |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.318 | 0.347 | 0.467 | 0.625 | 0.625 | 1.50 | 0.500 | 2.6 | 3 | 1/8-27NPT | PRSS-01 | 402701 | 402741 |
| 0.409 | 0.450 | 0.655 | 0.750 | 0.750 | 1.50 | 0.500 | 2.91 | 3 | 1/4-18NPT | PRSS-02 | 402704 | 402744 |
| 0.543 | 0.586 | 0.687 | 0.750 | 0.875 | 2.00 | 0.500 | 3.44 | 3 | 3/8-18NPT | PRSS-03 | 402707 | 402747 |
| 0.671 | 0.725 | 0.875 | 1.000 | 1.000 | 2.00 | 0.500 | 3.88 | 3 | 1/2-14NPT | PRSS-04 | 402710 | 402750 |
| 0.883 | 0.937 | 0.875 | 1.250 | 1.250 | 2.50 | 1.000 | 4.62 | 3 | 3/4-14NPT | PRSS-05 | 402713 | 402753 |
| 1.107 | 1.173 | 1.062 | 1.500 | 1.500 | 2.50 | 1.000 | 5.06 | 3 | 1-11.5NPT | PRSS-06 | 402716 | 402756 |
| 1.448 | 1.518 | 1.125 | 1.500 | 1.875 | 3.00 | 1.250 | 5.62 | 5 | 1¼-11.5NPT | PRSS-07 | 402719 | 402759 |
| 1.687 | 1.757 | 1.125 | 1.750 | 2.125 | 3.00 | 1.250 | 5.88 | 5 | 1½-11.5NPT | PRSS-08 | 402722 | 402762 |
| 2.154 | 2.230 | 1.219 | 2.000 | 2.625 | 3.00 | 1.250 | 6.22 | 5 | 2-11.5NPT | PRSS-09 | 402725 | 402765 |
| 2.561 | 2.670 | 1.75 | 2.000 | 3.125 | 3.00 | 1.250 | 6.75 | 5 | 2½-8NPT | PRSS-10 | 402728 | 402768 |
| 3.179 | 3.296 | 1.875 | 2.000 | 3.750 | 3.00 | 1.250 | 6.88 | 5 | 3-8NPT | PRSS-11 | 402731 | 402771 |