1, Circumstances are therulers of the weak, instrument of the wise. 

2, Please handle this precision instrument carefully.

3, An instrument used to measure tactile sensitivity.

4, Interest rates are an important instrument of economic policy.

5, This instrument will not stand rough usage.

6, The instrument is beautifully made in brass.

7, He is handy with any instrument.

8, He demonstrated how to use the instrument.

9, Which instrument do you play?

10, The stethoscope is a medical instrument.

11, It's a musical instrument made of brass, somewhat like a cornet and with a similar compass.

12, This boat has a special instrument fitting round the pole.

13, A healthy tooth percussed with a metal instrument gives a metallic sound.

14, Some cynics say that sport is a mere instrument of capitalist domination.

15, The despot claimed to be the chosen instrument of divine providence.

16, This detector is a very delicate instrument; it'll go wrong if it's mishandled.

17, He draws a unique full sound from the instrument.

18, He shows complete mastery of the instrument.

19, The instrument has a wide angle of view.

20, This instrument monitors the patient's heartbeats.

21, She possesses complete technical mastery of her instrument.

22, The compass is an instrument of navigation.

23, The instrument sounds like a cello.

24, The film explores the relationship between artist and instrument.

25, He can play nearly every musical instrument.

26, According to the police,[http://sentencedict.com/instrument.html] his attackers beat him with a blunt instrument.

27, The autopsy revealed that the deceased had been hit with a blunt instrument.

28, The police said he had been hit with a blunt instrument.

29, It is not a good idea to pressurize children into playing a musical instrument.

30, There is an internal circuit breaker to protect the instrument from overload.