Optical Center Punch & Hole Ruler (using 8D Nails)
This is an inexpensive visual center punch that lines up with measurement lines and makes it fairly easy to strike…
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updated April 29, 2022
Model files
Optical_Center_Punch__Hole_Ruler_Using_8D_Nails.stl
Model origin
The author marked this model as their own original creation. Imported from Thingiverse.