50MM Pipe Drill bit replacement 75mm-180mm Three Wings Alloy Drill Bit S Digging Artesian Water Well Exploration Drill

75mm - 180mm Three Wings Alloy Drill Bit 3 Blades Digging Artesian Water Well Exploration Drilg Hine Accessoriesthree-wing Bits Tend to Drill Faster, Whereas Four-wing Bits Are Longer-, More Durable, and Drill A Straighter Hole.it's Usually Designed for Soft Formations Such as Sand, Clay or Some Soft Rock. However, They Will Not Work Well in Coarse Gravel or Hard Rock Formations. Uses Include Drilg Water Wells, Mining, Geothermal, Environmental and Exploration Drilg. .we Produce A Variety of Tungsten Carbide Drill Bits, Mainly Ofr Water Exploration, Coal Mining and Soft Rock Drilg. Our Drill Bits Are Manufactured by Casting, Precision Forging and Medium Carbon Alloy Steel Hining.