The adjustable watch back cover opener can easily remove or unscrew the waterproof watch back cover to replace the battery or repair the watch. This is a necessary tool for watchmakers and watch repairers. The sliding handle fits the hand smoothly, so it is easy to apply force without hurting the hand, and it can also be moderately stable when placed. According to the hand shape, the handle is specially designed with a special groove, which can be held by a small hand and applied easily by a large hand. The opening is finely processed, not easy to deform when used, tough and , and the is hardened by electroplating. Without complicated operation, just fix the watch on the maintenance bracket or firmly hold the hand, and then roll the adjusting wheel to set the drill spacing that matches the width of the case. After installing the case opener, try to turn the back cover of the watch, and the cover can be opened successfully. Name:bottle opener for watch back cover Model:Square Head Colour:Silver Material:Metal Package Contents: 1 * Bottle opener for watch back cover Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.