R32 drill bit is one of the all the drill bit we have ,R38 T38 T45 T51 drill bit we can produce it ,the drill bit include button bit and cross bit , we use the great tungsten carbide and raw material and caccume heat treatment to make sure the quality of the drill bit ,the material we have 42CrMo , 35CrMoV ,45CrNiMoV ,etc you can pick it according to the hardness of the rock ,
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