Vortex Indexable U-Drill - 4xD - SPMG/SPKX - 30mmThe Vortex Indexable U Drill is a generalpurpose drilling solution designed for engineers and machinists who work with steel, stainless steel, cast iron, exotics, and nonferrous materials. With its 30 mm diameter and a robust Udrill design, it provides reliable performance in a compact, indexable system. Diameter: 30 mm Drill depth: 4xD maximum Insert system: Uses SPMG or SPKX ISO inserts Coolant: Internal through coolant capability Material