Holding the +skill hammer and using a tong in your pack used to consume a use only on the tong. It now will subtract a use from both the tool in your pack and the one in your hand.
If you target the hammer in your hand for smithy then it subtracts only from that hammer.
-Lorax
If you target the hammer in your hand for smithy then it subtracts only from that hammer.
-Lorax