Dorian Tool S20UMTFNL3 Boring Bar

The Dorian Tool S20UMTFNL3 Boring Bar, MPN S20UMTFNL3, is an indexable internal turning tool for CNC turning centers and manual lathes that performs internal boring, precision turning, and diameter finishing on bores and internal features. It uses a cylindrical steel shank mounted in a turret or tool post and accepts TNMG-Style turning inserts with right-hand cutting, compatible with external or flood coolant. Suitable for CNC lathes and engine lathes, it machines steel, stainless steel, cast iron, aluminum, and alloys, and is commonly employed in automotive, aerospace, heavy equipment, oil and gas components, and general industrial metal fabrication for production machining, tooling replacement, retrofit projects, and precision metalworking operations.