CASING TOOLS

The cutting ring of drill casings or coring barrels are fitted with weld-on blocks.By selecting the appropriate block all types of soils and concrete (during constuction of piled retaining walls)can be drilled through .This cutting tooth is suitable for excavating clay, cobbles (diameter greater than 50 mm), sand, weathered rock and hard rock. Thsi type bits are mounted at the outer edges of the cutting wheels to ensure the necessary over-cut. The tungsten carbide is hard and tough.