yotijay Watch Back Case Opener 201 Stainless Steel Sturdy for Watchmaker Wrench Dies

[Function]Professional watch maintenance tools for watch back case open requirements, opening and closing screw back case [Easy Storage and Carrying]Watch Back Case removal tool comes with a storage box for easy storage and portability [4 Grooved Chucks Size]Including Wrench and 4 different size Grooved chucks: 34-15/35-15/36-15/38-15mm [Watch Repair Tool]Great for opening and closing waterproof watch back case. Necessary tools for watchmakers and watch repairing workers [Quality Material]Watch Back Case Opener is made of quality 201 stainless steel material, high hardness, good toughness, high strength Specification: Material: 201 Stainless Steel Package Includes: 1 Wrench 4 Grooved Chucks Note: Please allow slightly errors due to manual measurement and different monitors.