iron hand

iron hand idiom
Rigorous control, as in He ruled the company with an iron hand. This usage is sometimes put as iron hand in a velvet glove, meaning “firm but seemingly gentle control,” as in She runs the town with an iron hand in a velvet glove. [c. 1700]

The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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