Tungaloy America Inc. has expanded its line of TungCut grooving and parting tools. The two-cornered inserts reduce tool costs while the clamping system used with them delivers stable tool life and machining accuracy, according to the company. The expansion includes the DTX insert with 6mm (0.236") groove width, toolholders for external and face grooving, round shanks for grooving on the end face of a deep hole and external grooving toolholders.