Assertion: wrench's torque | /r/CapableOf | shear the head
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Source sentences:
text: This drive type has the disadvantage of not being as precisely controlled as can be obtained by proper use of a torque wrench; applications may still fail due to either too little torque being applied to correctly fasten the joint, or too much torque being required to shear the head, resulting in damage to the material being fastened.[citation needed]