A block grant is a crude instrument of reform.
Unfortunately, ballot measures are crude instruments for carrying out complex undertakings.
He stood alone, looking at darkened control stations, imagining the reports from crude instruments and sensors.
Historical analogy has been a crude instrument in the service of moral and political certainty.
The performance of schools cannot be evaluated by the crude blunt instrument of league tables.
I blamed my crude instrument, and kept on.
The crude instrument hadn't been used in modern hospitals since before McCoy was an intern.
We say that this is too crude an instrument to be useful.
The Distracter, however, for all its strengths, is a fairly crude instrument.
It was such a crude instrument to try to find so subtle and terrible a pain.