sintered diamond drill bits Horizontal Sintered Drill Bits

With professional and productive factory, HAINAISEN is one of the leading China horizontal sintered drill bits manufacturers. Welcome to wholesale horizontal sintered drill bits from us, we always have cheap products to offer you. Name: High-strength horizontal sintering drill bits Type: High strength Article No.: FWPDG Feature: Applicable to drilling in hard formation. Combing the advantages of the compact drill bits and the diamond drill bits which combine compact drill bits’s rapid drilling footage and diamond drill bits’s perfect frictional resistance, ensured the longer service life in drilling hard formation. http://www.pdcoiltool.com