Tool Keybind? How do you make players use a tool when pressing a key?

Uh, so I tried to make a script that would allow me to equip a tool when i press q, however I had some problems with it, I'm also new to scripting so anything would be helpful.

local Player = game.Players.LocalPlayer Mouse = Player:GetMouse()

Mouse.KeyDown:connect(function(Key)
    if(Key:lower() == "q") then
        Player.BackPack.ClassicSword:Equip()
    end
end)