I need help with equip and unequipt stuff for my tool?

I have tryed lots of functions and they dont work, can you tell me what I exactly have to do? I want it so when my tool is not active to disable this script and when it is active enable it. It doesnt have anything to do it right now. Here is my code...

wait(2)
local player = game.Players.LocalPlayer
	local mouse = player:GetMouse()
	local blankPart = game.Players.LocalPlayer.PlayerGui.BlockGui.Block.Part
	blankPart.Anchored=true
	blankPart.CanCollide=false
	blankPart.Transparency=0.75
	 
	while true do
		wait(0.2)
	    local part = blankPart:Clone() --never change the original part, only a clone
	    part.Parent=workspace
	    mouse.TargetFilter=part --ignore the clone while getting mouse position
	    local moveConn
	    moveConn = mouse.Move:connect(function()
	        local p = mouse.Hit.p
	        part.Position = Vector3.new(math.floor(p.X),math.ceil(p.Y),math.floor(p.Z)) --mouse position in whole numbers
	    end)
	    mouse.Button1Down:wait() --do not have to connect a click function :)
	    moveConn:disconnect() --stop moving the clone
	    part.CanCollide=true
	    part.Transparency=0
	end