Elevator Mechanic Practice Exam

What is the correct method to drill stainless steel?

1. Fast speed and light pressure

2. Slow speed and constant pressure

3. Fast speed and constant pressure

4. Slow speed and intermittent pressure

The correct answer is: Fast speed and light pressure

The best method to drill stainless steel involves utilizing a slow speed and constant pressure. This approach is essential because stainless steel is a hard material that requires careful handling to prevent damage to both the drill bit and the material itself. Using a slow speed reduces the risk of overheating the drill bit, which can lead to premature wear or failure. Constant pressure ensures that the bit maintains enough force to cut through the material effectively without stalling or causing the bit to wander. Fast speeds, while sometimes effective for softer materials, typically lead to increased heat generation when drilling through tougher materials like stainless steel. This excess heat can cause the drill bit to lose its temper, reducing its cutting ability and potentially damaging the workpiece. Therefore, focusing on slower speeds and maintaining consistent pressure is crucial for achieving clean, precise holes in stainless steel.