basic hole test block —

Founded basic hole test block models & stl files for printing
Tolerance Test
KTechIndustries
Vertebral Stacking Blocks
DaveMakesStuff
Penguin Peril
Polymaker_3D
Robot Blocks Volume 1
coolthingsbyjacob
Simple Push Block
lmthomson1
Knife Block
tyliety97
Building Blocks
SOS1SOS1
building blocks
jadelabo