| Manufacturer Part Number | 66905PC |
| Mill Diameter (Inch) | 3/4" |
| Shank Diameter (Inch) | 3/4" |
| Length of Cut (Inch) | 1-5/8" |
| Overall Length (Inch) | 3-7/8" |
| Number of Flutes | 3 |
| Finish/Coating | TiCN |
| Tool Material | T15 |
| Center Cutting (yes/no) | Yes |
| Single or Double End | Single |
| Cutting Direction | Right Hand |
| Flute Direction | Right |
| Helix Angle | 42 Degree |
| Tolerance-Cutting Diameter | Up to 1"-0-+.0030" Over 1"-0-+.0060" |
| Coolant Through | No |
| Shank Style | Straight |
| Series | EK191 |
| Country of Origin | Korea |
| End Type | Flat |
| Corner Radius (Decimal Inch) | 3.048" |