A Persian drill is a drill which is turned by pushing a nut back and forth along a spirally grooved drill holder. It was formerly used for delicate operations such as jewellery making and dentistry. A ratcheting screwdriver with a 'spiral ratchet' mechanism may be used as a Persian drill.
Famous quotes containing the words persian and/or drill:
“Come, give thy soul a loose, and taste the pleasures of the poor.
Sometimes ‘tis grateful for the rich to try
A short vicissitude, and fit of poverty:
A savory dish, a homely treat,
Where all is plain, where all is neat,
Without the stately spacious room,
The Persian carpet, or the Tyrian loom,
Clear up the cloudy foreheads of the great.”
—Horace [Quintus Horatius Flaccus] (65–8)
“Swift blazing flag of the regiment,
Eagle with crest of red and gold,
These men were born to drill and die.
Point for them the virtue of slaughter,
Make plain to them the excellence of killing
And a field where a thousand corpses lie.”
—Stephen Crane (1871–1900)