Oh sorry bro, I ran a quick search but obviously it wasn't as extensive as it should have been, my bad.
Don't feel too bad though, Minecraftforum has a rather awful search tool. sometimes its better to put "site:minecraftforum.net thingyouaresearchingfor" into Google.
(and no, this is not the one with the hoppers)
basically, when repairing two tools in your 2x2 crafting grid, if you shift click the output you will receive an entire inventory of tools!
Watch the vid below to see it in action.
Oh sorry bro, I ran a quick search but obviously it wasn't as extensive as it should have been, my bad.
Don't feel too bad though, Minecraftforum has a rather awful search tool. sometimes its better to put "site:minecraftforum.net thingyouaresearchingfor" into Google.