NPTF Staggered Tooth Thread Mill
Our NPTF Staggered Tooth Thread Mills are built for efficient, high-precision dry seal pipe thread milling with reduced cutting pressure. The staggered tooth design minimizes tool load and vibration, resulting in smoother operation and improved thread quality—especially in tough materials. Designed with a crest cutting, full-profile geometry, these tools ensure leak-tight NPTF threads without the need for sealants. Made from premium submicron grade carbide and available with an optional AlTiN+ coating, they offer extended tool life, enhanced heat resistance, and reliable performance in demanding applications.
| Thread Diameter/Pitch | A (Tool Diameter) | B (Length of Cut) | Q (Length) | S (Shank Diameter) | OAL | Flutes | Uncoated Tool # | Uncoated EDP # | AlTiN+ EDP # |
|---|---|---|---|---|---|---|---|---|---|
| 1/16, 1/8-27 | 0.220 | 0.534 | 0.019 | 0.2500 | 2.50 | 4 | TM220-27NPTF | 101184 | 101196 |
| 1/8-27 | 0.275 | 0.758 | 0.019 | 0.3750 | 3.50 | 4 | TM275-27NPTF | 101202 | 101226 |
| 1/4, 3/8-18 | 0.335 | 0.693 | 0.028 | 0.3750 | 3.50 | 4 | TM335-18NPTF | 101208 | 101232 |
| 1/4, 3/8-18 | 0.387 | 0.805 | 0.028 | 0.4375 | 3.50 | 4 | TM387-18NPTF | 101238 | 101250 |
| 1/2, 3/4-14 | 0.435 | 1.034 | 0.036 | 0.5000 | 3.50 | 4 | TM435-14NPTF | 101256 | 101268 |
| 1/2, 3/4-14 | 0.440 | 1.034 | 0.036 | 0.7500 | 6.00 | 4 | TM440-14NPTF | 101274 | 101286 |
| 1 1/4 to 2-11.5 | 1.000 | 1.700 | 0.044 | 1.0000 | 6.00 | 6 | TM1.0-11.5NPTF | 101292 | 101304 |