OSG Flat Bottom Carbide Drill - Solid 2xD Long Length - EGIAS Coated - 3.50mmThe OSG Flat Bottom Carbide Drill Solid 2xD Long Length EGIAS Coated is designed for deep, precise flat bottom holes. With a 3. 50 mm diameter and a solid 2xD long length, it delivers extended reach without sacrificing accuracy or stability. Diameter: 3. 50 mm Length: Solid 2xD long length for reach into deeper features Coating: EGIAS coating for superior wear resistance and high speed performance Geometry: Flat bottom drill geometry for clean, level