Check your lungs as needed. Use a respirator if you're exposed to high levels of dust during work. Dust masks won't help you feel better in the short term. Wear a respirator if you cough frequently or for a prolonged period, or if your coughing involves exposure to substances known to be harmful to your health. • Each respirator is designed for specific types of hazards. Make sure you use the right drill bit for your project.
Wrap smaller parts. If you are drilling a small, simple part, seal it tightly before drilling. Do not hold the part with one hand while drilling, as the ドリルビットが滑ってケガをする恐れがあります。