Double Margin Straight Flute Drills
When you need a drill custom-built for precision drilling tolerances and stability when drilling irons and non-ferrous materials, consider adding the Double Margin Straight Flute Drill to your arsenal of cutting tools. Double Margin Straight Flute Drills include, as the name implies, a second margin behind the main margin. The second margin on this cutting tool burnishes the hole as the main margin creates it, creating a smooth finish and a far more accurately measured hole. In addition to the accuracy of the cut, this type of drilling often eliminates the need to reaming altogether.