Gun Drill Handling Damage: Prevention and Inspection
Gun drills are precision tools that are surprisingly easy to damage. The long, slender shank and the exposed carbide tip are vulnerable to handling damage. I’ve seen good drills ruined by careless handling. Here’s how to prevent damage and what to inspect for. Common Damage Modes Bent shank. The most common damage. A gun drill that’s dropped or handled roughly has a bent shank. Even a slight bend causes runout. ...