Hole Opener multi - cones 32" Drill Bit Tricone Drilling Bit Customized

Introductions: 
 

Cutting Structure    
The hole opener always have multi-cones. Bit cones are splitted from Tricone Bits and welded to build a big diameter bit. The pilot is attached with hole opener. 
 

Product Application    
Hole opener for enlarge a small well hole to bigger diameter in construction field, bridge construction, super highway construction, railway construction etc. This kind of bits are suitable for different complex formation, shale, limestone, cobblestone, dolomite, chert, etc.
 

Main Type Available    
Regular Bit Diameters: 28", 32", 36", 38", etc, and any diameters can be customized, maximum diameter is 1600mm. 

Specifications: 

28", 32", 36", 38"

Any special size would be available by request.