fine-tooth comb 
(also fine-toothed comb)
noun
1A comb with narrow teeth that are close together.Comb gel through with a fine-toothed comb and let hair dry naturally....
- Nit combs are fine-toothed combs which can remove the tiny eggs laid by lice.
- The simplest nonchemical lice cure is mechanical: Manually remove lice by combing the hair of the infested child with a fine-toothed comb.
1.1 [in singular] Used with reference to a very thorough search or analysis of something: they went through the house with a fine-tooth comb...See also toothcomb.
- ‘It's my fault for not going through it with a fine-tooth comb,’ Wells observed.
- The planners' report goes over the city's Official Plan with a fine-tooth comb to discover numerous reasons why this kind of development is inappropriate for the neighbourhood and inconsistent with all the city's planning intentions.
- The Department of Arts has gone through it with a fine-tooth comb and it is absolutely justified.
- market analyst
- market basket
- market behavior
- market behaviour
- market bell
- market boat
- market cap
- market capitalism
- market capitalization
- market clearing
- market cross
- market day
- market dealer
- market-driven
- market economy
- marketeer
- marketer
- market failure
- market fair
- market fish
- market forces
- market-fresh
- market garden
- market gardener
- market gardening