Expanders are used for enlarging the hole after the initial bore is made. The expander is designed for use with a pulling attachment and a steel cable. In addition, it must be assisted with a power winch or some other pulling equipment to assure continued tension on the cable. Front End Expanders are recommended for occasional use only.
| Part Number | Grundomat Model | Exp. Size (OD) |
|---|---|---|
| 07083730 | 65 P | 3.00″ |
| 07083645 | 75 P | 4.50″ |
| 07083650 | 75 P | 5.00″ |
| 07068555 | 85 P | 5.50″ |
| 07069560 | 95 P | 6.00″ |
| 07069660 | 110 P | 6.00″ |
| 07069763 | 130 P | 6.50″ |
| 07069780 | 130 P | 8.00″ |
| 07069980 | 145 P | 8.00″ |
| 07069898 | 180 P | 10.00″ |
**Other sizes are available upon request.
