My Build Tool will build even when your not using it. Why?

So when the build tool is equipped, this should allow them to build. When not equipped, they should not be able to build.

Tool called Buildtool with this LOCAL script inside.

local Mouse = game.Players.LocalPlayer:GetMouse()
local tool = script.Parent
local Equipped = false

tool.Equipped:Connect(function()
    Equipped = true
    local player = game.Players.LocalPlayer
    local mouse = player:GetMouse()
    local val
 
    mouse.Button1Down:connect(function()
        if mouse.Target and mouse.Target.Name ~= "Baseplate" then
            local block = Instance.new("Part", workspace) -- new Block
            block.Anchored = true
            block.Size = Vector3.new(5,5,5) -- block size
            block.BrickColor = BrickColor.White()
            block.Name = "TempBlock"
        end
    end)
 
    mouse.Button1Up:connect(function()
        if mouse.Target and mouse.Target.Name ~= "Baseplate" then
            local foundBlock = workspace:FindFirstChild("TempBlock")
            foundBlock.CFrame = CFrame.new(mouse.Target.Position) + Vector3.new(0,5,0)
            foundBlock.Name = "PlacedBlock"
        end
    end)
 
    mouse.KeyUp:connect(function(k)
        local key = k:lower()
        if key == "r" then
            if mouse.Target.Name == "PlacedBlock" then
                mouse.Target:Destroy()
            end
        end
    end)
end)

tool.Unequipped:connect(function()
    Equipped = false
end)