45 Degree Engraving Bit, 1/8&rdquo; 3.175mm Shank 0.3mm Tip 38mm Length 2 Flutes Carbide Engraving Bit EnPoint Tough Tip Cone Shape Metal Engraving Bit CNC Marking Conical V-Bit for Steel Aluminum Brass An exceptionally durable tool bit for lasting longer than other engraving tools when engraving metal Designed with a sharper cutting edge that provides a cleaner cut when cutting aluminum and brass Unique V design maximizes the tip strength by removing the minimum amount of material from the end Produced from an Ultra-Fine, Submicron, Nano Grade Solid Carbide for maximum tool performance High precision grinding and great concentricity for reducing chance of burr and deviation