precision

• Like clockwork

  Happening with absolute regularity and predictability, as if by a perfectly engineered mechanism.

• on the needle

  Indicating something is perfectly precise, accurate, or exactly on target, often in terms of a dial, gauge, or measurement.

• Thread the needle

  To perform a very delicate, precise, or difficult task, often involving careful navigation through a complex or narrow situation.

• A hair's breadth

  An extremely small distance or amount, so slight as to be almost imperceptible.

• Fine cutting instruments

  These are highly precise tools designed for delicate and accurate cutting tasks, often requiring exceptional sharpness and careful handling.

• Dot the i's and cross the t's

  To pay meticulous attention to every small detail, ensuring that everything is absolutely correct and complete.