The phrase "a convenient instrument" is correct and usable in written English.
It can be used to describe a tool or method that is easy to use or helpful in achieving a specific purpose.
Example: "The new software serves as a convenient instrument for managing our project timelines efficiently."
Alternatives: "a useful tool" or "an effective means".
Another thing that Syrians don't need is for such a war to be treated as a convenient instrument in a separate project.
Kadyrov's forces represent a convenient instrument for the Kremlin: obedient, battle-hardened troops who can be counted on for messy missions.
Economics thus becomes a convenient instrument the state uses to manage the economy, rather than a tool the public turns to for enlightenment about how the economy operates.
I hit them with 'neo-Nazi,' I hit them with everything!" It was striking that, for him, "neo-Nazi" had been reduced to a convenient instrument of self-justification, rather than a cause for questioning or concern.
547), and it is apparent that it furnishes a convenient instrument for thecoercion which the Constitution and the act of Congress forbid; an instrument of compulsion peculiarly effective as against the poor and the ignorant, its most likely victims.
It is not known whether he is an independent bandit or is really co-operating with the Government, as a convenient instrument of terror to hold over the land and mine-owners, in order to force loans and protection money.
But it is fair to say that they are joined by a sure instinct that hatred of the Jews is a timelessly convenient instrument of propaganda and cohesion.
As Ptolemy showed in his Planisphaerium, the fact that the stereographic projection maps circles into circles or straight lines makes the astrolabe a very convenient instrument for reckoning time and representing the motions of celestial bodies.
He dismissed the dynamic as the result of "the internal political struggle". "Some people think that playing the Russian card is a very convenient instrument for solving internal political problems," Putin said.
"It's a convenient tool".
