Kernorvatel D73 (set 3 rings)← Core breaking rings in Kazakhstan in AstanaShare ID: 95930:1344127 View the products in section «Core breaking rings»DescriptionIt is used when drilling for capture and failure of a core from a face and its deduction when raising the tool from a well. Is established between a kolonkovy pipe and a crown. We recommend to see Cutters for drilling equipment Systems location of drilling
