Smallest hole drilled
- Who
- Cardiff University
- What
- 0.022 millimetre(s)
- Where
- United Kingdom
- When
- 29 November 2005
On 29 November 2005, scientists at Cardiff University in Wales, UK, announced the development of machinery that can drill holes just 22 microns (0.022 mm) across. The technique uses a process called electro-discharge machining, and will eventually allow for improvements in the miniaturisation of electronic systems. A human hair has a width of between 50 and 80 microns.