[shǒu jiǎo gàn jìng]   

手    脚    干    净    比喻廉洁奉公。

手脚干净（shǒu jiǎo gàn jìng）比喻廉洁奉公。

Not to make a harsh of sth.

手无寸刃    手足重茧    手无寸铁    手不释卷    手泽之遗