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Designed for drilling wall, such as brick, block and abrasive concrete by handheld core drill or stand core drill.
| Diameter | working length | Seg.No. | Seg.Size | Thread |
| 22 | 300 | 2 | 15*3*8 | 1/2BSP |
| 28 | 300 | 3 | 15*3*8 | 1/2BSP |
| 32 | 150 | 3 | 15*3*8 | 1/2BSP |
| 38 | 150 | 3 | 15*3*8 | 1/2BSP |
| 48 | 150 | 3 | 24*3*8 | 1/2BSP |
| 52 | 150 | 3 | 24*3*8 | 1/2BSP |
| 65 | 150 | 3 | 24*3*8 | 1/2BSP |
| 78 | 150 | 4 | 24*3*8 | 1/2BSP |
| 91 | 150 | 5 | 24*3*8 | 1/2BSP |
| 107 | 150 | 6 | 24*3*8 | 1/2BSP |
| 117 | 150 | 7 | 24*3*8 | 1/2BSP |
| 127 | 150 | 8 | 24*3.5*8 | 1/2BSP |
| 152 | 150 | 9 | 24*3.5*8 | 1/2BSP |
| 162 | 150 | 9 | 24*3.5*8 | 1/2BSP |