Specifications of 25mm pilling bullet teeth C31HD Product name 25mm pilling bullet teeth C31HD for rock wheel trencher Material Tungsten carbide tips and 42CrMo Process Forging Application Concrete drilling Diameter 25mm Tips diameter 12mm Packaging Plastic box Quick details of C31HD U40HD pilling bullet teeth Rock wheel trencher use 25mm pilling bullet teeth C31HD for solid rock and reinforced concrete drilling The difference between C31 auger bits and C31HD drill bits Specifications C31HD C31 Diameter 25mm 25mm Carbide tips diameter 12mm 9mm Head diameter 33mm 33mm Carbide tips length 22mm 18mm Head length 61mm 62mm Bullet teeth length 118mm 120mm Application Drilling and tunnel boring Drilling hard rocks and concrete Applications of 25mm pilling bullet teeth C31HD C31HD auger bits are also called C31 pilling bullet teeth or C31hd drill bit, they are widely used in hard rocks and reinforced concrete, and apply to rubber tire and rock wheel trencher.