A highly-rated version of this model, described as a "good post" by its creator who could not find a suitable version elsewhere, is available on :
The search for "Download KW1 zip — good post" most likely refers to the 3D model file, which is widely used for copying house keys.
: You can usually identify a KW1 key by its bow (the top part you hold), which typically has straight sides and a triangle-shaped top, resembling a simple house shape. Kwikset KW1 Key Blank by frillweeman - Thingiverse
: This specific model was designed to allow users to copy a house key by overlaying a picture of their physical key and tracing the edges.
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