Denshi Jisho — Online Japanese dictionary

Found 3 sentences.

交渉させる手づよいです He is a right person who can drive a hard bargain.
ついにその共産主義者手づよい味方得た The communist got his dependable supporter at last.
あいつ海千山千だから相手取引させてかなり手づよい With all of his tricks he has mastered, he will be able to deal with any formidable client.