| Manufacturer Part Number | 521230 |
| Shank Type | Taper Shank |
| Taper Size | CAT50 |
| Pilot Diameter (Inch) | 1-1/4" |
| Projection Flange to Nose End (Decimal Inch) | 8" |
| Nose Diameter (Decimal Inch) | 2.88" |
| Arbor Thread (Inch) | 5/8"-18 |
| Key Size (Inch) | 1/2" |
| Pilot Length (Decimal Inch) | 0.69" |
| Product Type | Shell Mill Holder |