You can easily safely open a watch back cover using it.
It is a professional precision quality universal watch case wrench.
It comes with an open ended wrench and side handles.
Structure: Installed 2 adjustable clamps, Knurled handle for easy grip and Thumb wheel for precision adjustment.
Ideal for: Opening and closing most screw type watch cases.
Material: Stainless Steel
Range of Opening: 10-40mm
1 x Adjustable Watch Back Case Wrench Opener