pin drills

A form of pin drill — A drill with a central pin or projection to enter a hole, for enlarging the hole, or for sinking a recess for the head of a bolt, etc.; a counterbore.

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Meanings

noun
  1. pluralplural of pin drill
Cite this entry
APA

pin drills. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/pin%20drills

MLA

“pin drills.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/pin%20drills. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “pin drills,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/pin%20drills.

Source: pin drills on Wiktionary, CC BY-SA 4.0.