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Reaming bits
Reaming bits are also known as pilot reaming bits, which are used for drilling central holes in tunneling. The reaming bits are divided in to an integral type and a split type. The split reaming bits are composed of pilot adaptors and reaming bits.
| Reaming bits | |||
| Type | Connection | Diameter | |
| Integral Type | R32 R35 R28 R3212 TR35 T38 | 76-127mm | |
| Split Type | R25 R32 R35 R38 T38 T45 T51 ST58 ST68 | 64-254mm | |
| Split Type | Pilot Adapter | R25 R28 R32 DR33 R35 TR35 T38 1222 (Taper) | 23-40mm |
| Reaming Bit | 6 ° * φ28 6*φ34 6 ° * φ46 12 ° * φ30 12 ° * φ51 12 ° * φ63 | 57-127mm | |
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