毫厘不爽

毫厘[发]不爽 [háo lí bù shuǎng]

1. ■ There is not the slightest error.; be perfectly accurate; cannot take a penny less (than that); exactly; just right; not to deviate a hair's breadth; not the least loss; There was not a fraction of difference (between them).; to a nicety; without the least difference