| MODEL | ZWG-4 | ZWG-4B |
| Max. drilling capacity | 4mm | |
| Dia. of column | 40mm | |
| Spindle travel | 40 | |
| Distance spindle surface | 101mm | 127mm |
| Max. distance to base | 174mm | 170mm |
| Spindle taper | JTO | B10 |
| Spindle speed range | 6000-12000rpm | 2800-9000rpm |
| Spindle speeds | - | 3 |
| Dimension of base | 292x210mm | 322x220mm |
| Overall height | 517mm | 618mm |
| Motor | 80W | 150W |
| Gross weight/net weight | 17.5/16Kg | 24/22.5Kg |
| Ship measurement | 32.6x24.4x44.2cm | 53x37x27cm |