Application
Well drilling, horiztional excavation for tunnel
Product name
DTH Hole Opener Mining Drill Bit
Available Shank Type
DHD3.5, QL30, COP34
Guide Diameter
80mm-110mm/ 3 3/4" - 4 5/16"
Reamed Diameter
130mm-165mm/ 5 1/8" - 6 1/2"
Application Range
Hard,Very Hard and Medium Soft Rock Formations
Keyword
Hole Opener DTH Drill Bits
Experience in Rock Tools Industry
Over 30 Years