| | |  | Hand Held Magnifiers | Home » » » French Clock Key Jewelers Mainspring Winding Tool Sz 2 | | | | | | | Description: | | New French Clock Key Size 2. This is a new French pattern clock key size 2. This is used to wind French clock mainsprings. It is steel, plated with nickel. The hole measures 2.75 mm. | | | | Customer Reviews: | | Write an online review and share your thoughts with other customers.
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