Our 3/8" Right-Hand Triangle Insert Indexable Boring Bars provide a rugged, high-performance option for internal turning where through-coolant is not needed. Built with a robust carbide shank and steel head, these tools offer excellent stability and wear resistance during extended cuts. Compatible with triangle-style inserts, they are suited for general-purpose boring and finishing in medium-diameter holes. A dependable option for shops seeking cost-effective, straightforward tooling with consistent results.