Winner - Conventional DTH Drilling Bit

Bit diameter: 64mm to 810mm. Bit shank: Sandvik, Atlas Copco, Ingersoll Rand, Halco, Bulroc etc. Bit face: flat, concave, convex and drop-center. Button shape: spherical, ballistic, semi-ballistic and parabolic. Quality aircraft alloy steel and tungsten carbide, optimum design, state of art manufacturing, multiple precise heat-treatment. Highest penetration rate, maximum wear resistance, longest lifespan and outstanding performance  in roughest working conditions.