... gaskets in seconds It's the only metric punch & die which will give you ten true metric ... size punches Eliminates time and material wasted with conventional punch & dies No guess work needed to center ... No need to scribe center lines Exclusive, patented punch, pilot and pin system Packaged in a durable ... plastic case Ten punch sizes: 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, ...