How do I insert a tool into the players backpack?

So basicly I want to insert a tool in to the players back pack but how do I insert a tool and not a part?

What you would do is use Player.Backpack. For example:

--note: this would only work in a localscript

local player = game.Players.LocalPlayer

tool.Parent = player.Backpack

Go to the Bar with Select, Move, Rotate

Model > Advanced Objects > Search "Tool"