123_Block
thingiverse
123 Block Everyone should have 123 Blocks in their arsenal. Probably proper metal ones but I use these a lot. 1" x 2" x 3" Threaded holes are 3/8"-16 thread; Through holes are 5/16"
Download Model from thingiverse
With this file you will be able to print 123_Block 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 123_Block.