New Double End Clock Key Size 4 This is a new set of 2 size 4 & 000 double ended clock keys. These are used to wind clock mainsprings. You receive: One brass clock key with hole sizes 1.75 mm and 3.25 mm One nickel plated clock key with hole sizes 1.75 mm and 3.25 mm Newer versions of the item shown may be shipped, as a result, there may be a slight variation in color and design.
Related 2 Double End Clock Keys Clockmakers Sz 4 1.75 & 3.25mm
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