Article · Wikipedia archive · Last revised Jun 10, 2026

Persian drill

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.

Last revised
Jun 10, 2026
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≈ 1 min
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84 w
Citations
2
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Wikipedia ↗
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A Persian drill is a drill which is turned by pushing a nut back and forth along a spirally grooved drill holder.1 It was formerly used for delicate operations such as jewellery making and dentistry.2 A ratcheting screwdriver with a "spiral ratchet" mechanism may be used as a Persian drill.

References

References

  1. Brown, Henry T. (1868). Five hundred and seven mechanical movements. Brown & Seward. p. 33. OCLC 6821027.
  2. Nagyszalanczy, Sandor (2000). The Art of Fine Tools. Taunton Press. p. 84. ISBN 978-1-56158-361-4.