Can anyone help me with disabling tools for a stun script in my game?

So, in a sword fighting game I'm making, I was working on a stun script. The stun script worked (Almost) perfectly, it would work by anchoring the player when a number value went below 9. (It started at 21, and when the player got hit, it would decrease by 3 every time) The problem was, it didn't stop the player from using a tool to hit, or block incoming attacks. (That is what the sword can do) I need help finding a way to stop that from happening. I thought about disabling the tool if you equip it, but I can't quite figure that out. I would like for someone to find out how I could go about disabling the tool when your stunned, By the way, if you looked at my last post on this topic, I have changed some things (Put the number value in the player, Changed the stun value from 7 to 9.) Thanks in advance.

Code For Reference

local hum = script.Parent.Parent.Humanoid
local humRootPart = script.Parent.Parent.HumanoidRootPart
local buildup = script.Parent
stunned = false

buildup.Changed:Connect(function(newValue) 
    if newValue <= 9 then 
        if stunned == false then
            stunned = true
            print("epic")
            local StunAnim = hum:LoadAnimation(script.Parent.StunAnim)
            StunAnim:Play()
            humRootPart.Anchored = true
            if stunned == true then
                wait(4.5)
                stunned = false
                StunAnim:Stop()
                humRootPart.Anchored = false
                buildup.Value = 21
            end
        end
    end
end)