趁手

趁手	chèn shǒu	conveniently; without extra trouble / convenient; handy
趁	chèn	to avail oneself of / to take advantage of
趁	chèn	old variant of 趁
手	shǒu	hand / (formal) to hold / person engaged in certain types of work / person skilled in certain types of work / personal(ly) / convenient / classifier for skill / CL:双,只