1 Inch plug
thingiverse
This is a plug designed specifically for a 1-inch hole. The V3 version of this plug offers added depth, while the V4 version takes it even further by being an even deeper plug.
Download Model from thingiverse
With this file you will be able to print 1 Inch plug with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on 1 Inch plug.