Processing Type: Forging / Material: Carbon steel / Shank type: Cop, Cop gold, DHD, Mission, SD, QL , Mach , BR, wooke / Face design: Flat, Concave, Convex / Tooth design: Spherical, ballistic / Bit size: 2 inches, 2.5 inches, 3 inches, 4 inches, 5 inches, 6 inches, 8 inches, 10 inches,12 inches / Bit Diameter: 76mm~445mm / Apply to: Surface and underground mining, Tunneling, Geological exploration, Quarries, Dam construction, Construction, Water Well / Certification: ISO9001:2008 / Advantage: Heat treatment and CNC machine gives bits longer working life / For more :emma(at)wooke-intl(.)com