by (one's) fingertips

by (one's) fingertips

1. Literally, of a grasp, using only the tips of one's fingers (such as when hanging on the edge of a cliff). The stranded hiker was clinging on by her fingertips until the rescue crew arrived.
2. In a way that is narrowly avoiding problems or failure. They're clinging on by their fingertips out there—the other team's offense is totally overwhelming them. Now that I have three small children to care for, I feel as if I'm hanging on by my fingertips every day.
See also: by, fingertip
Farlex Dictionary of Idioms.

by your fingertips

only with difficulty; barely.
1990 Current History In early 1988 , United States Assistant Secretary of State Elliott Abrams said that General Noriega was clinging to power ‘by his fingertips’.
See also: by, fingertip
Farlex Partner Idioms Dictionary
See also:
  • by your fingertips
  • cling on by (one's) fingertips
  • hang on by (one's) fingertips
  • be hanging on by (one's) fingertips
  • be hanging on by your fingertips
  • cling on by (one's) fingernails
  • hang on by (one's) fingernails
  • within grasp
  • have at fingertips
  • have something at your fingertips