The invention is to easily perform a management of a plurality of tools used in a fishing reel. A fishing reel tool (200) used in a double bearing reel is equipped with: a box-typed wrench portion (210) and an operation portion (220). The box-typed wrench portion (210) is engaged with a cap of a battery box of the double bearing reel. The operation portion (220) is equipped with: a receiving portion (221B) used to receive a hexagonal wrench (300)； and a recessed portion (223) to receive a button cell battery (400). The receiving portion (221B) is equipped with: a first receiving portion (221BA) which receives a short side portion (320) of the hexagonal wrench (300) and one end portion of a long side portion (310) connected to the short side portion (320)； and a second receiving portion (221BB) which receives the other end portion of the long side portion (310).本發明之課題係在於容易進行使用於釣魚用捲線器之複數個工具的管理。用以解決課題之手段為，使用於雙軸承捲線器之釣魚用捲線器工具(200)，係具備：箱型板手部(210)和操作部(220)。箱型板手部(210)係與雙軸承捲線器的電池盒之蓋卡合。操作部(220)係具備：收容六角板手(300)之收容部(221B)；和收容鈕扣型電池(400)之凹部(223)。收容部(221B)係收容六角板手(300)的短邊部(320)及與短邊部(320)相連的長邊部(310)的一端部之第1收容部(221BA)；及收容長邊部(310)的另一端部之第2收容部(221BB)。
