| Manufacturer Part Number | 531190 |
| Shank Type | Taper Shank |
| Taper Size | CAT40 |
| Pilot Diameter (Inch) | 1/2" |
| Projection Flange to Nose End (Decimal Inch) | 1.75" |
| Nose Diameter (Decimal Inch) | 1.38" |
| Arbor Thread (Inch) | 1/4"-28 |
| Key Size (Inch) | 1/4" |
| Pilot Length (Decimal Inch) | 0.57" |
| Product Type | Shell Mill Holder |