[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.

手足重茧    手到拿来    手不释卷    手泽之遗    手胼足胝