I didn't equate hands with "manual implements" - only an illiterate would do so, or think that I had done so. I said that hands are one of a number of "manual implements"..
When in doubt, look up the words, because I use words as they are properly defined unless I quite clearly state otherwise.
Anything that a hand has touched will have evidence of being touched by hand, unless it has been further modified, in which case it will evidence the further modification. If in doubt, go look up the word "forensics" and "DNA"..
I reject this inane, contrived notion that objects must be identified at a glance. If you're confused, pick it up and study it.
I do not respond to the content of posts that use ad hominem arguments.
Should you wish to re-phrase you post I will reply.