“No, and attempting to use more then one Pick axe/Tree axe/Tool at once will result in both or all tools attached to be locked and unusable. So be very careful and always detach  picks/axes/tools before adding a new one!!!”

This doesn’t apply to wearable stat items like hats, rings, backpacks, shoes, snorkels etc, Only Applies to tools that yield resources or L$ from Rocks/Trees/Mines/Fields/etc.

(To talk with NPCs, Click their mouth!)