Professional Watch Back Case Opener Tool with Spring Convex Points - Anti-Slip High Precision Watch Repair Kit for Beginners | Perfect for DIY Watch Battery Replacement & Maintenance

Feature:1. Prevent Slipping: Watch back opener with 7 different grooved chucks, can fit your watch perfectly, allow you can rotate easily without slipping.2. Usage: Watch cover opener is great for opening and closing waterproof and grooved watch cases, also convenient for changing the watch battery.3. Suitable People: Watch back opener is suitable for watch maintenance personnel, watch repairmen, and amateurs who like DIY watch repairing.4. Easy Operation: Watch case opener is an essential tool for watchmakers and watch repairers, easy to operate, allow you can repair your watch by yourself.5. Stainless Steel: Watch back cover opener adopts high quality stainless steel material, effectively resists oxidation and rust, which can repair your watch without damaging it.How to Use:1. Measure the diameter of the watch case.2. Install chuck of the same size on the watch opener.3. Open the watch case with the chuck.Specification:Item Type: 5539 Watch Back Case OpenerMaterial: Stainless Steel, ABSChucks Size: Approx. 30.5mm / 1.20in, 31.5mm / 1.24in, 32.5mm / 1.28in, 33.5mm / 1.32in, 34.5mm / 1.36in, 35.5mm / 1.40in, 36.5mm / 1.44in Package List:1 x Watch Case Opener Wrench 7 x Grooved Clamps