WALKER-McDONALD DRILL BITS: Eaton Oil Tools, Inc. Is the South Louisiana & Louisiana Gulf Coast distributor of Walker McDonald bits, including-TCI, Mill Tooth, PDC & workover types.  Active in research, engineering & development, Walker McDonald has expanded its product lines to become a significant and creditable supplier of Oilfield Products. Walker McDonald has grown from a relatively small company, into an International Organization, as a result of experience, and recognizing the importance of engineering development and its investment in quality equipment and personnel. Continual improvement of existing lines, the development of new designs, research and refinement of manufacturing processes, as well as field testing of all products, translate into the production of quality products. Only the finest materials, machinery, and labor are used to produce Walker McDonald product lines. Customer requested product modifications.