I am currently trying to implement a custom crafting recipe in which it will place a dropper with a stone pickaxe with faster digging attributes. I was looking at the Attributes page on the Minecraft Wiki, but I couldn't find any modifiers to increase digging speed.
execute at @p run setblock ~ ~-1 ~ dropper{Items:[{Slot:4b,id:"minecraft:stone_pickaxe",Count:1b,tag:{Unbreakable:1,display:{Name:'[{"text":"test pick","italic":false}]'},AttributeModifiers:[{AttributeName:"effect.digSpeed",Name:"effect.digSpeed",Amount:10,Operation:2}]}}]} replace
Is there any specific attribute to increase digging speed? If there isn't, I'm hoping for maybe an invisible potion effect when the item is held.