Description
Basically designed for reaming holes to be tapped with American standard taper pipe taps(NPT).
| NPT Size | Flute Length | Overall Length (Inches) | Small End | Large End |
|---|---|---|---|---|
| 0.125 | 3/4 | 2.125 | 0.316 | 0.362 |
| 0.25 | 1-1/16 | 2.4375 | 0.406 | 0.472 |
| 0.375 | 1-1/16 | 2.5625 | 0.54 | 0.606 |
| 0.5 | 1-3/8 | 3.125 | 0.665 | 0.751 |
| 0.75 | 1-3/8 | 3.25 | 0.867 | 0.962 |
| 1 | 1-3/4 | 3.75 | 1.103 | 1.212 |
| 1-1/4 | 1-3/4 | 4 | 1.444 | 1.553 |
| 1-1/2 | 1-3/4 | 4.25 | 1.684 | 1.793 |
| 2 | 1-3/4 | 4.5 | 2.159 | 2.268 |



