Woodware Craft Collection - 1" Hat Punch. Ideal for a variety of crafting, scrap-booking, card making. For best results use 120-150gsm cardstock, using the incorrect thickness may result in the punch jamming. To sharpen the cutting mechanism, cut thin aluminium foil several times. To lubricate the cutting mechanism cut wax paper several times. Cut out size 2.4cm (1inch) approx Used but in perfect working order.