Metal Watch Opener, Case Back Watchmaker's Tool

Description:

- More professional watch maintenance tools for watch back case open requirements, opening and closing screw back case.

- Made of high quality durable metal, high hardness, good toughness, strength and durable.

- 6 Grooves chucks, diameter sizes: NO.0-18.5mm, -20.2mm, NO.2-22.5mm, NO.3-26.5mm, NO.4-28.3mm, NO.5-29.50mm.

- Great for opening and closing waterproof & grooved watch back case.

- Useful for watch repair works.

Package Includes: 1 Piece Wrench 6 Pieces Different Size of Grooved Chucks(Rings)