| Manufacturer Part Number | 337820 |
| Collet System | ER |
| Collet Series | ER40 |
| Shank Type | Taper Shank |
| Taper Size | R8 |
| Projection (mm) | 70mm |
| Minimum Collet Capacity (Decimal Inch) | 0.118" |
| Maximum Collet Capacity (Decimal Inch) | 1.023" |
| Nose Diameter (mm) | 63mm |
| Draw Bar Thread | 7/16"-20 UNF-3B |
| Product Type | Collet Chuck |