Jaxa opening wrench is perfect for opening and closing twist casebacks on watch cases. This jaxa comes with 4 different teeth for different watch casebacks. The wrench can be used for changing watch batteries, movements and more. The tool includes 4 sets of interchangeable pins: round, flat, toothed and square designed to open various types of watches. Twist handle adjusts to the size of the watch caseback. Can open watch backs from 10mm-45mm. Tool measures 5 1/2 x 2 x 3 /4 and can be stored away easily.
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