【Function】Professional watch maintenance tools for watch back case open requirements, opening and closing screw back case
【Quality Material】Watch Back Case Opener is made of quality 201 stainless steel material, high hardness, good toughness, high strength
【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
【Easy Storage and Carrying】Watch Back Case removal tool comes with a storage box for easy storage and portability