Millwright Level 1 Practice Exam

When filing a workpiece in a lathe, how should the file handle be held?

1. In your right hand

2. In your left hand

3. With both hands

4. In a vice

The correct answer is: In your left hand

When filing a workpiece in a lathe, holding the file's handle in your left hand is generally the recommended practice. This grip allows for better control and precision during the filing process, ensuring that the file moves smoothly across the surface of the workpiece. The left hand can guide the file while the right hand focuses on applying the appropriate pressure and maintaining the angle. This two-handed technique promotes balanced force application, reducing the risk of the file slipping or causing uneven surfaces. Proper grip also enhances overall safety by facilitating better stability and control. Using a vice would not be appropriate for holding the file, as the file needs to be manipulated against the workpiece rather than being stationary. Holding the handle in the right hand alone may limit your control and effectiveness, and attempting to use both hands to hold the file tightly could hinder movement and create unnecessary fatigue.