Custom nut driver for assembling quartz clocks

Norkro Clock Company Verified independent store

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This nut driver is custom made forattaching and screwing down the hex nut that holds a mini quartz movement into the clock. It works on almost all movements that use an AA battery. 5/16" indicates the diameter of the shaft. There are two sizes on this driver so it can accomodate different outside dimensions of the mounting nuts: Large and small. It will not work on movements that use a C batterey. Great time saver for clock manufacturers. Show more