E398 - 5/16 UNC Dormer HSS-E-PM Spiral Flute Tap - TiCN Coated
E398UNC5/16
E398
Thread size UNC 0.313 inch - 18 TPI, with thread tolerance class 93707, and maximum threading depth 0.7825 inches. Unique Powder Metallurgy HSS-E PM substrate provides excellent combination of toughness and edge hardness.
| Thread Diameter Size (TDZ) | 5/16 |
| Pitch (TPI) | 18 |
| Thread Diameter (TD) | 7.94mm |
| Overall Length (OAL) | 90.0mm |
| Thread Length (THL) | 12.0mm |
| Shank Diameter (DCON MS) | 8.00mm |
| Square Diameter (WSC) | 6.20mm |
| Square Length (LSC) | 9.0mm |
| Number Of Flutes | 3 |
| Premachined Hole Diameter (PHD) | 6.60mm |
| Usable Length (LU) | 35.00mm |
E398UNC5/16 E398 - 5/16 UNC DORMER HSS-E-PM SPIRAL FLUTE TAP - TICN COATED