ichidan verb, intransitive verb
become experienced; become skillful through experience
Often used in the past tense form 物慣れた to describe someone who is experienced or skilled due to repeated exposure. Intransitive; describes the person becoming accustomed, not an action on something else.
彼はもうこの仕事に物慣れている。
He is already experienced in this job.
物慣れた手つきで道具を扱
He handles the tools with practiced hands.