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Usage
It is used for gas extraction drilling, water-prospecting and drainage drilling, grouting drilling etc. in the underground coal mines; the steel drill bit is suitable for soft to medium hard formation, and the matrix bit is suitable for medium hard to hard formation or highly abrasive formation, but it should be used in the complex formation such as fractured and fissured formations.
round-arc drill bit | 201B0104-0003-A | Φ96 four-blade round-arc directional drill bit |
201B0104-0004-A | Φ98 four-blade round-arc directional drill bit | |
201B0104-0006-A | Φ120 four-blade round-arc directional drill bit | |
201B0106-0004-A | Φ120 four-blade round-arc directional drill bit for ultra-hard rock | |
201B0104-0014-A | Φ130 four-blade round-arc directional drill bit | |
201B0104-0008-A | Φ133 four-blade round-arc directional drill bit | |
201B0106-0003-A | Φ98 four-blade round-arc directional drill bit for ultra-hard rock | |
201B0104-0017-A | Φ113 four-blade round-arc directional drill bit | |
201B0106-0015-A | Φ89 four-blade round-arc directional drill bit for ultra-hard rock | |
201B0106-0012-A | Φ153 four-blade round-arc directional drill bit for ultra-hard rock | |
201B0106-0013-A | Φ98 four-blade round-arc directional drill bit for ultra-hard rock(welded) | |
201B0105-0001-A | Φ153 five-blade round-arc directional drill bit | |
201B0104-0020-A | Φ120 four-blade round-arc directional drill bit(welded) | |
201B0104-0015-A | Φ120 four-blade round-arc directional drill bit(welded) | |
201B0103-0005-A | Φ120 three-blade round-arc directional drill bit | |
201B0104-0021-A | Φ96b four-blade round-arc drill bit | |
201B0104-0016-A | Φ89 four-blade round-arc directional drill bit |