Please forgive the noobness of the question, but what's the point of the stats on a secondary tool? They don't appear to be included in my attributes when I check my Attributes menu. Do they replace the stats of a primary tool when quarrying?

If they do replace the stats of a primary tool when quarrying, then does quarrying have the same output cap as regular mining? (If I was sitting just at the 114/115 output cap with my primary tool equipped, then would I still need more of the stat if I wanted to cap out my output for quarrying, since secondary tools tend to have less output than primary tools?)