1, Common specification:
φ60mm/41.5mm φ75mm/49mm φ75mm/54.5mm φ91mm/68mm φ94mm/74mm Or can be customized according to clients’ requirement.
2, Our drill bits are patented, matching with single-tube, single-acting dual-tube, dual-acting dual-tube, and wire-line coring drill rods, widely used for geological mineral exploration.
3, Suitable for drilling in all hard formations (f=8-18), also for broken, fractured and other complex formations
4, How to choose the right drill bit?
More general use: Circle-ladder crown
Special hard bottom: Concentric crown
In some slippery ground: Serrated crown
Grinding effect of flat crown is similar to circle-ladder crown.