The Kwikset SmartKey Decoder works by using a reflective mirrored surface to give the user a direct line of sight to the lock’s sliders. By gauging the relative height of each slider, using a process similar to wafer reading, the user can quickly determine the bitting. Detailed instructions are included. After a couple hours of practice, most users can easily decode most locks in well under 30 seconds. Part Number LKMKSD.
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