OILMEC Rotating Solid Centralizers are constructed of one-piece high strength Stainless Steel or Alloy Steel. Centralizers are available in standard length only. These Centralizer are High graded castings followed with surface finishing on CNC machines, then rigid inspection make a quality product. All Centralizers are stove painted or coated with polyester powder. They are available from 3 ½” to 13 38” for any hole combination.