The CarbideMax™ 40 Series will broach up to 35mm thickness of metal.Individually brazed cutting teeth made from Tungsten Carbide are 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 performanceFits any standard 19.05mm (3/4inch) magnet drill40mm Cutting Depth78mm 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 cuttersFits any standard 19.05mm (3/4inch) magnet drill40mm Cutting Depth78mm 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.