Which option completes the disk grinder safety question?

• A. Unplug it when changing disks
• B. Remove guard for better control
• C. Always wear a face shield and safety glasses
• D. A and C

Answer: (D)

Disk grinders pose a risk from a spinning disc and flying debris, so safety focuses on de-energizing and protecting the eyes. Unplugging the grinder before changing discs prevents an accidental startup that could grab a hand or finger and cause injury. Eye protection is essential because fragments can be ejected during grinding; using a face shield along with safety glasses gives both full face and eye protection. The guard is there to deflect debris and keep the disc edge shielded; removing it dramatically increases the chance of contact or injury, so that practice is not safe. The best answer is the one that includes both unplugging during disk changes and wearing proper eye protection, since it covers the most critical safety steps.