This 2.5" scratch awl will become one of your most used tools in carpet repair.  It's thin tip design allows for the greatest of fine-tuning of repairs.  It will become an "extension of your hand and fingers".  Whether you need to lift a single loop; move yarns away from each other; lift delicate pieces up from the center; make sure the repair has not adhered to the carpet cushion; and many other uses, this 2.5" carpet awl will do the trick!  Costa Group Education recommends two of these in every repair kit.