What is the purpose of the drill press alignment check?

• A. To ensure the drill bit remains perpendicular to the workpiece for accurate holes
• B. To measure spindle speed
• C. To set the depth stop
• D. To determine feed rate

Answer: (A)

Aligning a drill press ensures the spindle axis, quill, and table are all true so the drill bit enters the workpiece at right angles. This perpendicular entry is crucial for holes that are located precisely where planned and have proper roundness and straightness. If the alignment isn’t correct, the bit can wander, holes can be tilted or tapered, and the hole locations can drift, reducing accuracy and fit of parts. The alignment check is about geometric accuracy—not about speed, depth, or feed settings. Spindle speed, depth stop, and feed rate affect how fast or deep you drill, but they don’t fix whether the hole is drilled at a true 90-degree angle.