"hairline crack" in German hairline crack Haarriss Detailed translations for "hairline crack" hairline crack hairline crack(also: craze, griffith) der Haarriss{masculine} The hairline crack in the reservoir must be between the sixth and the seventh. Source: opensubtitles.org Corpus by OPUS Request review Dabei wurde der Haarriss am 6. und am 7. repariert.