ITEM NAME:Watch Back Case Removal Tool Wrench Screw Case Opener Kit For Watchmaker Description Specification: Material: stainless steel Color: Silver Size: 14*5cm Watch suitable for less than 34mm of rear cover diameter Description: This watch tool case opener is easily adjusted to enable the opening of most screw back type watch cases. It has a knurled handle for added grip and an adjustable thumb wheel. By using this adjustable case opener, you can easily open the back case of your watch. Product list: 1 watch opener ï ¼Å’18 × Replaceable parts Note: 1.Please allow a little size error due to manual measurement. 2.Please be reminded that due to lighting effects and monitor's brightness/contrast settings etc, the color tone of the website's photo and the actual item could be slightly different. High quality store for you! Watch universal opener three claws + 18 steel teeth.This watch tool case opener is easily adjusted to enable the opening of most screw back type watch cases. It has a knurled handle for added grip and an adjustable thumb wheel. By using this adjustable case opener, you can easily open the back case of your watch.