In this case it would be better to say it is a good crafter who knows their tools. Not knowing the flaws or weaknesses of ones tools would be the fault of the crafter.
In this case it would be better to say it is a good crafter who knows their tools. Not knowing the flaws or weaknesses of ones tools would be the fault of the crafter.
Ok, perl-diddler blames his tools for not knowing how to use them.