Article
16 sectionsContents
- Process
- Spot drilling
- Centre drilling
- Deep hole drilling
- Gun drilling
- Microdrilling
- Vibration drilling
- Circle interpolating
- Material
- Drilling in metal
- Drilling in wood
- Others
- Related processes
- See also
- References
- External links
thumb|Titanium drilling
Drilling is a cutting process where a drill bit is spun to cut a hole of circular cross-section in solid materials. The drill bit is usually a rotary cutting tool, often multi-point. The bit is pressed against the work-piece and rotated at rates from hundreds to thousands of revolutions per minute. This forces the cutting edge against the work-piece, cutting off chips (swarf) from the hole as it is drilled.