NPT Staggered Tooth Thread Mill
Our NPT Staggered Tooth Thread Mills are designed for smoother, more efficient cutting with reduced tool pressure. The staggered tooth configuration helps minimize vibration and distribute cutting forces evenly, making them ideal for challenging materials and deeper threads. Available with optional AlTiN+ coating, these tools offer excellent heat resistance and extended tool life, ensuring consistent, high-quality performance. Perfect for internal NPT thread milling, they combine strength, precision, and durability for demanding pipe thread 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 | 0.250 | 2.50 | 4 | TM220-27NPT | 101181 | 101193 |
| 1/8-27 | 0.275 | 0.758 | 0.019 | 0.375 | 3.50 | 4 | TM275-27NPT | 101199 | 101223 |
| 1/4, 3/8-18 | 0.335 | 0.693 | 0.028 | 0.375 | 3.50 | 4 | TM335-18NPT | 101205 | 101229 |
| 1/4, 3/8-18 | 0.387 | 0.805 | 0.028 | 0.438 | 3.50 | 4 | TM387-18NPT | 101235 | 101247 |
| 1/2, 3/4-14 | 0.435 | 1.034 | 0.036 | 0.500 | 3.50 | 4 | TM435-14NPT | 101253 | 101265 |
| 1/2, 3/4-14 | 0.440 | 1.034 | 0.036 | 0.750 | 6.00 | 4 | TM440-14NPT | 101271 | 101283 |
| 1 1/4 to 2-11.5 | 1.000 | 1.742 | 0.044 | 1.000 | 6.00 | 6 | TM1.0-11.5NPT | 101289 | 101301 |