How to get 3x3 pickaxe with commands in Minecraft Bedrock!

Command Block 1: /execute as @a{tag=mining,hasitem={item=minecraft:diamond_pickaxe,location=slot.weapon.mainhand}] at @s run /fill ~1~2~1~-1~~-1 air destroy Command Block 2: execute as @a at @s positioned ~~1.6~ unless entity @s{dx=0,dy=0.4,dz=0] run tag @s add mining Command Block 3: execute as @a at @s positioned ~~1.6~ if entity @s{dx=0,dy=0,dz=0] run tag @s remove mining Command Block 4: execute as @a[tag=mining,hasitem={item=diamond_pickaxe,location=slot.weapon.mainhand}] run damage @s 1 entity_attack #minecraft #commandblocktutorial Pls sub