Core bit extension rods give you a longer coring depth
Diamond core drill bit extensions are used to quickly and easily achieve a greater depth when drilling with a core bit. You can attach multiple extensions to achieve 14".
| Description | Thread | Fits Bit Size | Part Number | Catalog Number | |
|---|---|---|---|---|---|
| 4" | 125-4 | 1.250"-7 | 1-5/8" & up | 01863 | |
| 4" | 125-4-S water sprayer | 1.250"-7 | 1-5/8" & up | 01864 | |
| 6" | 120-6 | 5/8"-11 | up to 1-1/2" | 01866 | |
| 6" | 120-6 | 7/8" O.D. | up to 1-1/2" | 55999 | |
| 6" | 125-6 | 1.250"-7 | 1-5/8" & up | 01869 | |
| 12" | 120-12 | 5/8"-11 | up to 1-1/2" | 01870 | |
| 12" | 120-12 | 7/8" O.D. | up to 1-1/2" | 55696 | |
| 12" | 125-12 | 1.250"-7 | 1-5/8" & up | 01873 | |
| 24" | 125-4 | 1.250"-7 | 1-5/8" & up | 01909 | |
| 36" | 125-36 | 1.250"-7 | 1-5/8" & up | 01877 | |
| 48" | 125-48 | 1.250"-7 | 1-5/8" & up | 01897 | |
| 6" | 187-6 | 1.875"-7 | Optional large bits | 01962 | |
| 12" | 187-12 | 1.875"-7 | Optional large bits | 0194 |