TORX is recognized as one of the three most efficient fastening systems because of their ability to transfer greater torque, reduce load and virtually eliminate tool slippage.
Z-SERIES
The Ko-ken Z-Series Collection
Koken Z-Series is designed for lower profile applications in difficult to get to locations. As an expert maker, we have been manufacturing socket wrenches for half century, and give our know-how and enthusiasm on them. Here we provide Z-series as next generation mechanic standard of socket wrenches.
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