tap drill

noun

A drill of the correct size to produce the hole for a specified tap size.

“The recommended tap drill for a ½"-13 UNC tap is 0.421", resulting in a 75 percent thread.”

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Meanings

nountap drill (plural tap drills)

plural tap drills

  1. A drill of the correct size to produce the hole for a specified tap size.

    The recommended tap drill for a ½"-13 UNC tap is 0.421", resulting in a 75 percent thread.

Cite this entry
APA

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

MLA

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

Chicago

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

Source: tap drill on Wiktionary, CC BY-SA 4.0.