Millwright Level 1 Practice Exam

Do small drills require a higher feed per revolution than larger drills?

1. True

2. False

3. Only in certain materials

4. It depends on the drill type

The correct answer is: False

Smaller drills do not typically require a higher feed per revolution than larger drills, as they are designed to cut more finely and require less material removal per revolution. In general, the feed rate is balanced with the diameter of the drill to ensure effective cutting without excessive wear or breakage. Larger drills can handle a higher feed rate due to their greater cutting edge length and increased strength, allowing for more material to be removed effectively. For optimal performance, feed rates are determined based on the drill's diameter, the material being drilled, and the specific application. In aggregate, the feeding rates for drilling operations must be tailored specifically to the characteristics of the equipment being used, which reinforces the idea that smaller drills do not inherently require higher feed rates compared to larger ones.