The CarbideMax 80 Series will broach up to 75mm thickness of metal. Individually brazed cutting teeth are made from Tungsten Carbide capable of drilling through the toughest steels. - Up to 10x longer life than traditional HSS Cutters - 64% Faster cuts than HSS cutters - Elaborate cutting geometry for faster, quieter drilling - Chatter free performance Premium Grade Tungsten Carbide teeth, one of the hardest materials available for use in cutting tools Up to 10x longer than traditional HSS cutters 64% faster cuts than HSS cutters Advanced triple-cut geometry results in faster, quieter drilling Large range of sizes and depths available Chatter-free performanceFits any standard 19.05mm (3/4") magnet drill 80mm Cutting Depth 117mm Total Length - Adjust RPM to match the material - Slowly and cautiously begin cutting before increasing pressure - For best results & swarf clearance always select a cutter longer than the material thickness - For hard materials & wear plates like Hardox use Ultra coated cutters