seriously you just tried to slag Inventables for being “dumb”.
The bit info is indeed on the plastic ring…Look down while holding the bit…or flip over bit and look down again…
or…click on the super bit link on the inventables site…
wow, just wow…if you are struggling to find info as simple as the bit diameter and type, you are going to have a hard time with the real hard stuff, you may want to be a little more cordial, because it sounds like you may be posting questions here alot…