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Koken USA 3/8" Z-Series Socket Sets

Koken USA's 3/8" Z-Series is an example of Koken design excellence and manufacturing quality. The compact design is 5 - 9 mm shorter, making them ideal for working in tight areas. Manufacturing tolerances of the Hexagon opening & Square drive are precisely controlled. The tight tolerances and ball mechanism provide the most secure connection between socket and handle in the industry. 

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