The Crafts Too Corner Punch very useful for making labels when cardmaking and scrapbooking gives a good professional finish. It makes things easier to create round corners and notches without scissors  Using the incorrect thickness of card or paper could result in the punch jamming, use something between 120 - 150gsm cardstock for best results. To lubricate the punch, cut wax paper several times and to sharpen the punch, cut thin aluminium foil several times when needed.