Century Drill & Tool STI Tap, Thread Size: 3/8-18, Thread Type: National Pipe, Chamfer Type: Taper, Thread Direction: Right Hand, HCS. Best Drill Bit Size: 37/64 in.
| Thread Type | : | National Pipe |
| Type | : | Screw Thread Insert (STI) Taps |
| Material | : | HCS |
| SAE/Metric | : | SAE |
| Thread Size | : | 3/18-18 |
| Chamfer Type | : | Taper |
| Thread Direction | : | Right Hand |